HTH 91021 Swimming Pool Care Kit Opening and Closing Maintenance Bundle, 0, clear

I used a different brand to close my 24' above ground pool. When I uncovered it a month ago, it was clear but I worried about balancing it out. I filled up the pool, put these chemicals in it, plopped in a couple chlorine tablets and it was good to go! Very simple. Just add chemicals one at a time by following directions on the box. Pool is crystal clear and chemicals are balanced. Good thing I bought 2! Will definitely purchase again!!

Great

You get two HTH shock packs which is a great product. The other items are not essential for Texas pools, and you could probably save a few bucks buying the product by itself, but it was our 1st year opening on our own (plus the tricolor shortage is hitting us hard), so we wanted to make sure we had everything we need. Pool looks great and instructions were easy to follow.

Easy to use. Won't really know how effective this was for closing the pool until this spring. Have used this brand in the past and have been pleased with the results. Looking forward to being able to open the pool again. Last time the water was nice and clear. Didn't take too much to get the pool usable.

I order this every fall to close our pool. It's easier to use than other kits I've tried. It works as it's suppose to also. Never any problems when opening the pool in the spring!

We received this early May have always used HTH chemicals for our pools needs. The algae guard granules were literally a brick in the bottle we had already put in some of the other chemicals so couldn’t return otherwise we would have.

I use this every year and it works every year. Easy to follow instructions.

Everything easy to measure.