Can someone please recommend which Polyquat-60 Algaecide they use to close their pool. I understand that the non-foaming (non metallic) is the best one to use. I have read and re-read the threads from many members, etc.
Last year, the pool company closed my pool and added chemicals. Also, used the frog system for the beginning of the season until I switched. I believe they contained copper and other minerals, metals. Testing from the pool company shows no metals in my water or low enough where there is no problems.
Also, any other secrets would be of help. I believe only the Algaecide is necessary. Thank you.