I did not study how this product works just bought it from the good reviews but i can attest that it does work very well

I did not study how this product works just bought it from the good reviews but i can attest that it does work very well  Read Less

It is best to shock the pool also when using this product

It is best to shock the pool also when using this product  Read Less

It works if you use as directed with the chlorine shock

It works if you use as directed with the chlorine shock  Read Less

I found one product at a pool supply shop that worked but was costly

I found one product at a pool supply shop that worked but was costly  Read Less

I would have given this product 5 stars but because of the packaging i had it only 4

I would have given this product 5 stars but because of the packaging i had it only 4  Read Less

Was battling yellow algae for 6 weeks in a 38000 gallon gunite pool

Was battling yellow algae for 6 weeks in a 38000 gallon gunite pool  Read Less

Added four 4oz cap fulls directly to pool and 6 bags of shock

Added four 4oz cap fulls directly to pool and 6 bags of shock  Read Less

Double shocking triple shocking didnt phase it phosphate removal didnt work two other types of algaecide didnt work this stuff worked

Double shocking triple shocking didnt phase it phosphate removal didnt work two other types of algaecide didnt work this stuff worked  Read Less