HTH 52036R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, (6 Pack)

I have a 15' Intex pool things go green once in a while even though I usually keep 3" diameter chlorine tablets in my skimmer accessory. I throw in about half this package and by the next day, its all great and there really isnt much of a chlorine smell or issue.

best shock ever don’t waste your money on others, cleared up algae that inferior shock did nothing for.it is durable and has great chlorine content. we bought clorox shock because it was cheaper and had algae, but once we put this shock i. pooled, cleared it overnight

This box will last us all summer. we have a smaller above ground pool and I use about 1/4 of a bag every week and it works perfectly

Honestly, one of the best shocks for your buck. It is pretty cheap for what it does. It dissolves fairly quickly, easy to open, clears up the pool in an hour or so, and it last for a few weeks.

Can’t beat the price. From what I can feel it works as well as the higher end brands at about 25% less, depending on what sales you find.

The product performs exceptionally well. After a significant rainstorm caused my pool to flood and become quite dirty, I added two bags of the product, and within just two hours, the water was already starting to look clear again.

A well known product that has a history of working well in the set up of our pool. Does not leave a residue or heavy smell. It makes our skin soft and not tight. It also has ingredients in it that are great for aging skin!

Cleaned up the cloudy water after winter within a few days. Just one did the trick.