HTH Pool Care Green to Blue Advanced Shock System for Swimming Pools, 7.2lbs

from June

Last summer, my pool was an absolute mess!! I spent a lot of money, and made many trips to the pool store. I know they got tired of seeing me, but, oh well. I spent between $500-$800 on different products. I became very despondent. I just wanted to give up....and I did. In April of this year,...

from Kathy

I had almost given up on my pool and then ended up as one last resort to try this stuff. Overnight, just like it says, green to blue!

from Michelle

With all the rain we had in a week's time my pool turned green and I was having a very hard time fixing it so I gave this a try and it worked incredible well and fast within a 24 hour time span I got my pool sparkling blue again!

from helen

I had shocked my pool three times, vacummed, scrubbed, backwashed for a week and nothing was working....it was still green I put this in last night and woke up this morning to everything on the bottom....AMAZING !!! Will definetly use this again !!!

from Immigrantgolfer

This stuff works! 2 hours after turning the pump off all the algae was in a 6 foot circle on the bottom in the middle of the pool and the water was clear. Ignore the negative reviews from the people who didn't follow the instructions and ran it through their filter.