Our pool is new this year and the closing was included in the price so we let the pool company close it. They had to install the cover anyhow. I prefer to do this on my own but figured it was free so I'd let them. But I wasn't home. They told me they added algaecide and shock and then said I should add "Algaecide Plus" before it freezes (there is a cap in the cover to add chemicals). I don't know if they added a copper based chemical or what problems any algaecide could cause. I see to use polyquat on the TFP site.
Do I have any concerns? Should I add more algaecide of some kind before it freezes?
Do I have any concerns? Should I add more algaecide of some kind before it freezes?