Am planning on closing our pool this Sunday ourselves for the first time (with the help of someone who does this regularly).
1. Where do I buy polyquat from in Toronto?
2. How much do I need?
3. When do I put it in? Prior to draining below the returns or after? I would assume after so as not to "waste" any (and run the pump with the skimmer closed).
Same for Chlorine... If I want to boost the FC, when should I add? After draining?