---
product_id: 3678665
title: "iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation"
brand: "ispring"
price: "€ 876.12"
currency: EUR
in_stock: true
reviews_count: 13
category: "I Spring"
url: https://www.desertcart.pt/products/3678665-ispring-rcc1up-ak-100-gpd-7-stage-reverse-osmosis-under
store_origin: PT
region: Portugal
---

# Boost pump for max efficiency 100 GPD ultra-pure flow Smart UV filter with sensor iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation

**Brand:** ispring
**Price:** € 876.12
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your hydration game with next-level purity and style!

## Quick Answers

- **What is this?** iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation by ispring
- **How much does it cost?** € 876.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/3678665-ispring-rcc1up-ak-100-gpd-7-stage-reverse-osmosis-under)

## Best For

- ispring enthusiasts

## Why This Product

- Trusted ispring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Boosted Performance:** Integrated booster pump optimizes pressure, slashing wastewater and ensuring peak RO membrane efficiency.
- • **Smart UV Protection:** UV filter activates only when needed via flow sensor, extending bulb life and guaranteeing bacteria-free water.
- • **7-Stage Purity Power:** Eliminates 99%+ of 1,000+ contaminants including PFAS, lead & chlorine for crystal-clear hydration.
- • **Sleek, User-Friendly Design:** Patented top-mounted faucet with brushed nickel finish plus transparent housing for effortless filter monitoring.
- • **DIY Installation Made Simple:** Quick-fit connectors and step-by-step guides mean no plumber needed—upgrade your water in under an hour.

## Overview

The iSpring RCC1UP-AK is a premium 7-stage under-sink reverse osmosis water filtration system delivering up to 100 gallons per day of ultra-pure water. Featuring a booster pump for enhanced efficiency, an intelligent UV filter for pathogen elimination, and an alkaline remineralization stage to restore essential minerals, it combines advanced filtration technology with a sleek, easy-to-install design. Perfect for health-conscious professionals seeking reliable, contaminant-free hydration with minimal maintenance.

## Description

desertcart.com: iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation : Industrial & Scientific

Review: Exceptional Quality and Service, My 4-Month Review of the iSpring RCC1UP-AK-BLK - Exceptional Quality and Service: A 4-Month Review of the iSpring RCC1UP-AK-BLK After four months of use, I am incredibly satisfied with my investment in the iSpring RCC1UP-AK-BLK 7-Stage Reverse Osmosis System. I chose this model to ensure safer, better-tasting water for my home while eliminating microplastics from bottled water. Value & Investment This system is a great money-saver. Based on my calculations, the unit will pay for itself in less than 11 months, meaning I only have eight months left until it has completely cleared its own cost. Customer Service & Delivery Before purchasing, I contacted iSpring directly with several questions. A representative named Francis was truly kind and helpful, guiding me toward the right unit for my needs. I ordered via desertcart on December 31st, and it arrived in perfect condition by January 3rd. The packaging was excellent, with every component individually protected. Installation & Build Quality The materials are high quality, and the instructions are clear and easy to follow. Straight forward installation with diagrams, mayor components ensembled. Because I am currently renting, I installed the system in the laundry room rather than under the kitchen sink. Following the recommended steps led to a perfect installation with zero leaks or issues. Pro-Tip: Monitoring Performance I chose to add pressure gauges to monitor three critical points: incoming street pressure, post-prefilter pressure, and the pump pressure entering the membrane. Here is what I have learned for those looking to optimize their system: • Optimal Pressure: The system performs best between 40–80 PSI (60 PSI is ideal). • Prefilter Health: A 2–3 PSI drop between the incoming water and the post-prefilter gauge is normal. A larger drop indicates it is time to change the filters. • Recommended Changes to Time Schedule Changes: o Keep this in mind the time between changes will be directly affected by conditions of the fed water. Your city or raw water will have water hardness that will impact the prefilter life span. If you do not pay attention will also affect the RO Membrane o Note: Water Hardness; concentration of Calcium and Magnesium. Must be a major concern if your water came from a well, instead of the city water. Will need specialized test or Professional Private lab test to determine results. o TDS or Total Dissolved Solids; All dissolved Organic and Inorganic Substances. This is an easier way to evaluate (and safer if is city water) and know your TDS Number, e.g., salts, metals, minerals, including Calcium and Magnesium dissolved in your water. • Note: Always consult, there is a possibility that any modification(s), alteration(s) may void seller warranty. • Scientific Monitoring (Rejection Rate): You can use a TDS meter to calculate the Rejection Rate: o Formula: [(Feed TDS – Permeate TDS) / Feed TDS] x 100 o You will need to buy a TDS Meter, to measure PPM (parts per million)  Notes:  If you are interested in a System with Remineralization (to add back essentials minerals, calcium, magnesium sodium, and potassium, to enhance water quality and taste) I strongly suggest getting a Meter that also reads Ph; helps you visualize the water alkalinity level (the higher more alkaline).  If the meter can read Conductivity, it can give you a notion of the Water Hardness and TDS (the lower the, lower the amount of WH and TDS).  Values of TDS on a RO System with Alkalinization stage are always higher than a None Alkalinization stage one. o A rate of 95–99% is excellent. o If it drops below 95%, it is time for re-order, 94-90% replace. o 90-below, you should not wait for this values. You may want to run on the safe side; remember you want to extend RO Membrane life. Final Verdict: Pros: I highly recommend iSpring Water Systems LLC. Their support is top-notch, and the product quality is evident. I choose the one with pump because it makes it more efficient in terms of less wastewater (known as; rejected, concentrated or brine), and faster & great-taste water than the one without pump. Need to add that the UV filtration is a plus for killing living things (not our actual case, but later; we may have one with water well) adding more safe water. I never measure the exact time to produce a full RO tank (from empty to full), but as an approximation is less than one hour Straight forward installation with diagrams, mayor components ensembled. Everything came extremely well packaged in a single big box. The first of the three prefilters is transparent, giving you a chance to see the condition. The mechanism to stop the water input (to the system) it is great idea to helps prevent water damage in case of an accident. Cons: Be aware that on this configuration you will be required to have an electric receptacle to power the Pump and the UV Ultra-Violet Sterilizer. In a power failure you cannot produce water without modification. Closing Statement If you are not sure which model fits your home, their support team is easy to reach by phone or email. Great product and great service—special thanks to Francis for the help!
Review: So far a great system! - I have had this system in use for about a month and a half and thought I would give my thoughts. It is a first RO system for us so I do not have anything else to compare to. With that, I will say that the installation went well for my particular under-sink space and existing setup and left me with a sufficient amount of storage for the normal cleaners and chemicals people tend to store under a kitchen sink. It had all of the adapters that I needed for my under-sink situation, so no fussing around with having to purchase anything else. The whole setup and install was easy enough for me, but I have always been a DIYer, so others may have a different experience. I am very impressed with the capacity and pressure of the filtered water that comes out of the RO faucet from the included storage/pressure tank. I think it holds about 2-3 gallons of water that is available for immediate use. I come from using a PUR water filter that attaches to the faucet, so what I have now is night and day better as to how quickly the purified water comes out. I did a tank emptying test to see how much water I could get if I shut the system down so it did not replenish, and here are my observations: 1. The system was able to supply water at a rate of about 1 cup (8 oz) about every 5 seconds and maintain that rate pretty consistently with minimal drop-off for a solid 4-5 minutes. 2. From that point till about the 8 minute mark the system was still supplying water, but the rate was progressively getting slower, although still quite useable until near the 7-8 minute mark. By then the stream had tapered off till it was not very usable to fill a glass reasonably quickly. The tank was likely empty, or close to it, and I think whatever I was getting at that point was mostly recovery and new filtered water direct from the RO filter. 3. To fully refill the tank I believe it took about 45 minutes +/-. The manual says to expect 1-2 hours, but that has not been my experience at all, after several drain and fills so I was pleasantly surprised. However, not all was sunshine and roses, but even then only relatively minor issues once I figured something out and got another issue corrected. On first system start-up and use (after the required flushes), I was expecting to see air bubbles in the water and maybe have some taste quality issues until sufficient flushing of all the filters had occurred. 1st, the water was initially very saturated with air, which did mostly dissipate in the glass after a short time, although there is no issue with drinking it immediately as it's just air. 2nd, in my opinion the water tasted awful! I was expecting crisp, clean, high quality tasting water, but the best I can describe it is that it tasted like a weak oatmeal flavor or maybe some kind of earthy. That was definitely surprising because iSpring marketing paints a different experience out of the gate. However, I was within my first week and figured that the taste was still fresh cartridge dust or whatever that hadn't fully flushed out. This system does have a couple of carbon cartridges to clean up taste, but it also has a re-mineralization filter AFTER the RO filter and right BEFORE the UV filter, so that re-mineralized water goes directly out to the faucet and into your cup. As time went on the air bubbles did get much better (there are always some as a byproduct of the RO process), but the odd taste did not. 3rd, I noticed from the very beginning that the faucet had a consistent drip about every 3-5 minutes or so, and figured it would diminish and stop after a short time if caused by any valve seals that may have not seated properly, but it did not stop even after a few weeks. I thought that the ceramic seal for the valve must have had a problem and decided to call support to ask about all 3 of these observations. I am happy to report that my experience with support was great! The support rep I spoke to was "Robert", and I really appreciated his time and willingness to talk through the issues and hear what he had to say. * He confirmed that the excessive air bubbles should greatly decrease soon enough - they did. * He understood that the dripping was not normal and immediately issued me a replacement faucet, which I have been using now for a little more than a week. That seems to have solved the dripping, for the most part, as now I might get a initial 1 or 2 drips (likely thermal expansion of the water held in the faucet neck by surface tension) and then nothing after that till the next use. I am happy with that. * As to the taste, he admitted that it was surely from the re-mineralization cartridge and would probably not go away sufficiently to my liking. The solution, should I choose, would be to remove that cartridge from the mix by rerouting one of the connecting tubes - effectively removing the cartridge yet leaving it in place (if I wanted). While I do understand that that CAN BE a solution, it's not the best one. But, perhaps for someone who doesn't care if the water tastes a flatter it could be an acceptable one (SEE SOLUTION BELOW). But I paid for a 7-stage system! Removing a cartridge from a system that aims to reintroduce minerals that are stripped out by the RO filter back into the water to improve taste is apparently tricky business, and my experience highlights this potential problem. I don't know what other brand systems do to mitigate this issue when they also have re-mineralization, but maybe it is a problem in this industry as a whole. Robert's answer was probably the best he had, but short of someone actually NOT wanting the minerals re-introduced, I have a better solution that does not involve removing a stage. I figured out that if I simply turn the RO faucet on for 3-5 seconds PRIOR to filling my cup (or other container), that that totally resolves the taste issue and reflects the perfectly great tasting water that RO systems are supposed to be known for. I imagine this works because any water that sits in the re-mineralization filter for very long before water is needed just gets saturated with the minerals - those first few ounces of heavy mineral water going right into the cup. A little pre-flush is all that is needed and it works! So, my advice regarding any odd tastes that others who have these systems might experience is to try my instant "fix". And as for iSpring, I suggest they add this suggestion to their FAQs on the website (I could have missed it if already there, but saw nothing in this regard) and to the system manual itself in the section that goes through potential problems and solutions. All-in-all, I am very happy with this RO system and feel comfortable recommending it.

## Features

- QUALITY 7-STAGE FILTRATION - Reduces up to 99% of over 1,000 harmful contaminants, including PFAS (PFOA & PFOS), chlorine, fluoride, lead (up to 98%), arsenic, asbestos, calcium, sodium, and more.
- BOOSTER PUMP - Ensures consistent RO performance by pressurizing water through the membrane, improving efficiency and reducing wastewater compared to pumpless models.
- UV FILTER - Smart Flow Sensor automatically activates the UV light only when needed, with a 3-minute delay to save power and extend bulb life.
- PREMIUM FEATURES - Includes a European-style brushed nickel faucet with a rust-free finish and a transparent first-stage housing for easy filter condition monitoring. The system includes 3 pre-filters to reduce large contaminants, an RO membrane for ultra-fine filtration (0.0001 microns), and an alkaline filter to restore essential minerals and natural balance.
- DO-IT-YOURSELF INSTALLATION - Fits under a standard kitchen sink with all parts included. Quick-fitting connectors ensure a leak-free setup with no pipe threading required. Step-by-step instructions and videos make installation easy, with expert support just a call away.
- BUILT TO LAST - Designed with high-quality components for long-term reliability and low maintenance, providing fresh, clean water for years to come.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006X3YJKK |
| Best Sellers Rank | #21,944 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #41 in Under-Sink & Countertop Filtration |
| Brand | iSpring |
| Brand Name | iSpring |
| Capacity | 100 gallons |
| Container Type | Tube |
| Customer Reviews | 4.7 out of 5 stars 1,423 Reviews |
| Global Trade Identification Number | 00662425048021 |
| Included Components | housings, filters, parts and tubings, faucet and mounting bracket |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 15.35"L x 9.06"W x 18.11"H |
| Item Type Name | iSpring RCC1UP-AK 100GPD High Capacity, Boosted Performance Under Sink 7-Stage Reverse Osmosis Drinking Water Filtration System and Ultimate Water Softener with Alkaline Remineralization, and Pump |
| Item Weight | 16 kg |
| LowerTemperature Range | 4 °C |
| Manufacturer | iSpring Water System |
| Material | Acrylonitrile Butadiene Styrene , Plastic, Polyethylene , Polypropylene, Polystyrene |
| Material Type | Acrylonitrile Butadiene Styrene, Plastic, Polyethylene, Polypropylene, Polystyrene |
| Maximum Flow Rate | 0.07 gpm |
| Model Name | Reverse Osmosis System |
| Model Number | RCC1UP-AK |
| Number of Items | 1 |
| Other Special Features of the Product | Alkaline Filter, Ultraviolet Filter |
| Part Number | RCC1UP-AK |
| Power Source | Corded Electric |
| Product Dimensions | 15.35"L x 9.06"W x 18.11"H |
| Purification Method | Reverse Osmosis, Alkaline, Activated Carbon, Carbon block, Ultraviolet |
| Special Feature | Alkaline Filter, Ultraviolet Filter |
| Supported Water TDS Level Maximum (PPM) | 750 |
| UPC | 662425048021 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 °F |
| Warranty Description | 1-year limited manufacturer warranty |

## Product Details

- **Brand:** iSpring
- **Capacity:** 100 gallons
- **Included Components:** housings, filters, parts and tubings, faucet and mounting bracket
- **Installation Type:** Under Sink
- **Material:** Acrylonitrile Butadiene Styrene, Plastic, Polyethylene, Polypropylene, Polystyrene
- **Package Information:** Tube
- **Power Source:** Corded Electric
- **Product Dimensions:** 15.35"L x 9.06"W x 18.11"H
- **Purification Method:** Reverse Osmosis, Alkaline, Activated Carbon, Carbon block, Ultraviolet
- **Special Feature:** Alkaline Filter, Ultraviolet Filter

## Images

![iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation - Image 1](https://m.media-amazon.com/images/I/71eWRYTIS5L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: I found a case/ complaint from the federal trade commission against iSpring.  Does anyone know anything about this case?**
A: iSpring sold all its rights to Amazon from what I am researching. There is no "About Me" other than pointing to Amazon for sales. Anyone provide info to their customer service/warranty support?

**Q: Is there a version of this system with a larger tank?**
A: We have 4 gallon, 5.5 gallon, 11 gallon, 20 gallon and 40 gallon tanks available.

**Q: Can I place this in my basement and run multiple lines to different sinks throughout my house?  If so, will I need something to boost the pressure?**
A: In short, yes you can do what you explain without any added pumps. Best thing for doing what you desire is to upgrade to a larger storage tank. This will allow you to run multiple lines without stress on the system for your demands. But as an example, with the standard 3gal tank, I have no problem with lines running over 10' above the tank and still have good pressure. Just doesn't last long with the small tank.Remember, this system makes a decent amount of waste water, so don't expect 10gal to go in and 10gal to come out. If you plan on using it throughout your house, the cost and water consumption will surprise you.

**Q: Does this filter VOC's?**
A: Hi,

Yes the carbon filters on this system are effective at reducing or removing VOC's. Please let us know if you have any additional questions.

Thank you,

iSpring Water Systems LLC
678-261-7611

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exceptional Quality and Service, My 4-Month Review of the iSpring RCC1UP-AK-BLK
*by J***A on April 26, 2026*

Exceptional Quality and Service: A 4-Month Review of the iSpring RCC1UP-AK-BLK After four months of use, I am incredibly satisfied with my investment in the iSpring RCC1UP-AK-BLK 7-Stage Reverse Osmosis System. I chose this model to ensure safer, better-tasting water for my home while eliminating microplastics from bottled water. Value & Investment This system is a great money-saver. Based on my calculations, the unit will pay for itself in less than 11 months, meaning I only have eight months left until it has completely cleared its own cost. Customer Service & Delivery Before purchasing, I contacted iSpring directly with several questions. A representative named Francis was truly kind and helpful, guiding me toward the right unit for my needs. I ordered via Amazon on December 31st, and it arrived in perfect condition by January 3rd. The packaging was excellent, with every component individually protected. Installation & Build Quality The materials are high quality, and the instructions are clear and easy to follow. Straight forward installation with diagrams, mayor components ensembled. Because I am currently renting, I installed the system in the laundry room rather than under the kitchen sink. Following the recommended steps led to a perfect installation with zero leaks or issues. Pro-Tip: Monitoring Performance I chose to add pressure gauges to monitor three critical points: incoming street pressure, post-prefilter pressure, and the pump pressure entering the membrane. Here is what I have learned for those looking to optimize their system: • Optimal Pressure: The system performs best between 40–80 PSI (60 PSI is ideal). • Prefilter Health: A 2–3 PSI drop between the incoming water and the post-prefilter gauge is normal. A larger drop indicates it is time to change the filters. • Recommended Changes to Time Schedule Changes: o Keep this in mind the time between changes will be directly affected by conditions of the fed water. Your city or raw water will have water hardness that will impact the prefilter life span. If you do not pay attention will also affect the RO Membrane o Note: Water Hardness; concentration of Calcium and Magnesium. Must be a major concern if your water came from a well, instead of the city water. Will need specialized test or Professional Private lab test to determine results. o TDS or Total Dissolved Solids; All dissolved Organic and Inorganic Substances. This is an easier way to evaluate (and safer if is city water) and know your TDS Number, e.g., salts, metals, minerals, including Calcium and Magnesium dissolved in your water. • Note: Always consult, there is a possibility that any modification(s), alteration(s) may void seller warranty. • Scientific Monitoring (Rejection Rate): You can use a TDS meter to calculate the Rejection Rate: o Formula: [(Feed TDS – Permeate TDS) / Feed TDS] x 100 o You will need to buy a TDS Meter, to measure PPM (parts per million)  Notes:  If you are interested in a System with Remineralization (to add back essentials minerals, calcium, magnesium sodium, and potassium, to enhance water quality and taste) I strongly suggest getting a Meter that also reads Ph; helps you visualize the water alkalinity level (the higher more alkaline).  If the meter can read Conductivity, it can give you a notion of the Water Hardness and TDS (the lower the, lower the amount of WH and TDS).  Values of TDS on a RO System with Alkalinization stage are always higher than a None Alkalinization stage one. o A rate of 95–99% is excellent. o If it drops below 95%, it is time for re-order, 94-90% replace. o 90-below, you should not wait for this values. You may want to run on the safe side; remember you want to extend RO Membrane life. Final Verdict: Pros: I highly recommend iSpring Water Systems LLC. Their support is top-notch, and the product quality is evident. I choose the one with pump because it makes it more efficient in terms of less wastewater (known as; rejected, concentrated or brine), and faster & great-taste water than the one without pump. Need to add that the UV filtration is a plus for killing living things (not our actual case, but later; we may have one with water well) adding more safe water. I never measure the exact time to produce a full RO tank (from empty to full), but as an approximation is less than one hour Straight forward installation with diagrams, mayor components ensembled. Everything came extremely well packaged in a single big box. The first of the three prefilters is transparent, giving you a chance to see the condition. The mechanism to stop the water input (to the system) it is great idea to helps prevent water damage in case of an accident. Cons: Be aware that on this configuration you will be required to have an electric receptacle to power the Pump and the UV Ultra-Violet Sterilizer. In a power failure you cannot produce water without modification. Closing Statement If you are not sure which model fits your home, their support team is easy to reach by phone or email. Great product and great service—special thanks to Francis for the help!

### ⭐⭐⭐⭐⭐ So far a great system!
*by D***N on August 19, 2026*

I have had this system in use for about a month and a half and thought I would give my thoughts. It is a first RO system for us so I do not have anything else to compare to. With that, I will say that the installation went well for my particular under-sink space and existing setup and left me with a sufficient amount of storage for the normal cleaners and chemicals people tend to store under a kitchen sink. It had all of the adapters that I needed for my under-sink situation, so no fussing around with having to purchase anything else. The whole setup and install was easy enough for me, but I have always been a DIYer, so others may have a different experience. I am very impressed with the capacity and pressure of the filtered water that comes out of the RO faucet from the included storage/pressure tank. I think it holds about 2-3 gallons of water that is available for immediate use. I come from using a PUR water filter that attaches to the faucet, so what I have now is night and day better as to how quickly the purified water comes out. I did a tank emptying test to see how much water I could get if I shut the system down so it did not replenish, and here are my observations: 1. The system was able to supply water at a rate of about 1 cup (8 oz) about every 5 seconds and maintain that rate pretty consistently with minimal drop-off for a solid 4-5 minutes. 2. From that point till about the 8 minute mark the system was still supplying water, but the rate was progressively getting slower, although still quite useable until near the 7-8 minute mark. By then the stream had tapered off till it was not very usable to fill a glass reasonably quickly. The tank was likely empty, or close to it, and I think whatever I was getting at that point was mostly recovery and new filtered water direct from the RO filter. 3. To fully refill the tank I believe it took about 45 minutes +/-. The manual says to expect 1-2 hours, but that has not been my experience at all, after several drain and fills so I was pleasantly surprised. However, not all was sunshine and roses, but even then only relatively minor issues once I figured something out and got another issue corrected. On first system start-up and use (after the required flushes), I was expecting to see air bubbles in the water and maybe have some taste quality issues until sufficient flushing of all the filters had occurred. 1st, the water was initially very saturated with air, which did mostly dissipate in the glass after a short time, although there is no issue with drinking it immediately as it's just air. 2nd, in my opinion the water tasted awful! I was expecting crisp, clean, high quality tasting water, but the best I can describe it is that it tasted like a weak oatmeal flavor or maybe some kind of earthy. That was definitely surprising because iSpring marketing paints a different experience out of the gate. However, I was within my first week and figured that the taste was still fresh cartridge dust or whatever that hadn't fully flushed out. This system does have a couple of carbon cartridges to clean up taste, but it also has a re-mineralization filter AFTER the RO filter and right BEFORE the UV filter, so that re-mineralized water goes directly out to the faucet and into your cup. As time went on the air bubbles did get much better (there are always some as a byproduct of the RO process), but the odd taste did not. 3rd, I noticed from the very beginning that the faucet had a consistent drip about every 3-5 minutes or so, and figured it would diminish and stop after a short time if caused by any valve seals that may have not seated properly, but it did not stop even after a few weeks. I thought that the ceramic seal for the valve must have had a problem and decided to call support to ask about all 3 of these observations. I am happy to report that my experience with support was great! The support rep I spoke to was "Robert", and I really appreciated his time and willingness to talk through the issues and hear what he had to say. * He confirmed that the excessive air bubbles should greatly decrease soon enough - they did. * He understood that the dripping was not normal and immediately issued me a replacement faucet, which I have been using now for a little more than a week. That seems to have solved the dripping, for the most part, as now I might get a initial 1 or 2 drips (likely thermal expansion of the water held in the faucet neck by surface tension) and then nothing after that till the next use. I am happy with that. * As to the taste, he admitted that it was surely from the re-mineralization cartridge and would probably not go away sufficiently to my liking. The solution, should I choose, would be to remove that cartridge from the mix by rerouting one of the connecting tubes - effectively removing the cartridge yet leaving it in place (if I wanted). While I do understand that that CAN BE a solution, it's not the best one. But, perhaps for someone who doesn't care if the water tastes a flatter it could be an acceptable one (SEE SOLUTION BELOW). But I paid for a 7-stage system! Removing a cartridge from a system that aims to reintroduce minerals that are stripped out by the RO filter back into the water to improve taste is apparently tricky business, and my experience highlights this potential problem. I don't know what other brand systems do to mitigate this issue when they also have re-mineralization, but maybe it is a problem in this industry as a whole. Robert's answer was probably the best he had, but short of someone actually NOT wanting the minerals re-introduced, I have a better solution that does not involve removing a stage. I figured out that if I simply turn the RO faucet on for 3-5 seconds PRIOR to filling my cup (or other container), that that totally resolves the taste issue and reflects the perfectly great tasting water that RO systems are supposed to be known for. I imagine this works because any water that sits in the re-mineralization filter for very long before water is needed just gets saturated with the minerals - those first few ounces of heavy mineral water going right into the cup. A little pre-flush is all that is needed and it works! So, my advice regarding any odd tastes that others who have these systems might experience is to try my instant "fix". And as for iSpring, I suggest they add this suggestion to their FAQs on the website (I could have missed it if already there, but saw nothing in this regard) and to the system manual itself in the section that goes through potential problems and solutions. All-in-all, I am very happy with this RO system and feel comfortable recommending it.

### ⭐⭐⭐⭐⭐ Filtered, good tasting and well thought out out system
*by V***F on July 18, 2026*

Waited for a long while to submit a review for this product just to see how it was working. We are very satisfied with the iSpring 7-stage reverse osmosis water filtration system with pump and tank. I wasn’t sure my water pressure would push the water out consistently so I looked for a system with a pump and tank. Also, our water tests pretty good (for local standards) but the buildup on faucet nozzles, toilet bowls, stainless sinks, etc was (and still is) a major problem staining the sinks and bowls and clogging up the faucets over time so we figured a good source of drinking and cooking water was needed. This system, although bulky even for a double wide sink cabinet (it takes up about 1/3 the space with the tank taking up the majority of the space) proved to be a good way to get great tasting water without the minerals and chemicals I saw when testing water out of the tap. The installation was fairly easy if you can call working under a sink in the cabinet easy (if you’ve done it, you know!). The push connections are great and do not leak as long as you install them per directions. And most of the connections are already made between the filters. There was a through manual included as well as some extra parts and clips. I was hoping it would plumb into the existing faucet to use there but that wasn’t the case, however we grew to like the separate soda fountain style faucet and it doesn’t take up too much space on the sink top tucked into one of the corners. We did have the reverse osmosis unit fail somewhere in the first two years of ownership. Emailing the company and proving date of sale was pretty much all that was needed and they shipped out new parts. Nick in service was very helpful. In taking it apart I got confused as to the route of the water through the various filters and the manual (which is pretty extensive!) wasn’t actually much help as was the web. I couldn’t find a simple flow chart showing the ins and out to ins through the system. Took some time to riddle it out referring to several pictures of the system. Should have taken photos as I went! The system seems to work as described. I change the filters around every 6 months but forgot the first two years but this didn’t slow the water output. I’m sure the filters were way past their useful life on that first change. This is when I noticed the electronic unit wasn’t working any more and contacted the company. Replacing the filters is, again, as easy as working under a sink in the cabinet can be. Kinda a pain but the actual unscrewing and screwing in the canisters wasn’t as hard as I thought it would be. It is messy since there’s residual water in there so get a pan and several towels ready. Don’t think we’ve hit the break even point between this systems cost and the cost of buying water but consider this… do you really know if the water you buy is purified to the level you want or expect? With the iSpring system, we know.

## Frequently Bought Together

- iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation
- iSpring ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet
- iSpring F31KU100 3-Year Reverse Osmosis Water Filter Replacement Cartridge Set for 7-Stage 100 GPD RO Water Filtration Systems w/Alkaline Mineral & UV Filters Fits RCC1UP-AK, RCC7AK-UV, 31 Piece

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-06*