I’m just starting to let my chlorine drop in order to begin the ascorbic acid treatment and I have a few questions that I hope someone might be able to help with. All involve the application of the Polyquat-60 I bought to use while the chlorine is low, as suggested in the instructions for the ascorbic acid treatment written by mbar/Marie. I haven’t used an algaecide before.
First, though, here are my current numbers in case these are needed.
First, when should I add the Polyquat-60? Now, or wait until the FC reaches minimum for my CYA, or wait until it hits zero just before I start the ascorbic acid treatment?
Second, what dosage? Instructions on the bottle say 11-16 oz. per 10K gal. for pools with just visible algae, or 6-11 oz. per 10K gal. for freshly cleaned pools. My water is very clear and I don’t have any excess chlorine use, so I’m pretty sure there’s no problem with algae at present. But would going a little heavy with the Polyquat-60 while the chlorine is zero make sense, or just interfere somehow?
Third, should I repeat the application while waiting for the chlorine to come back up? If so, how much and how often would you recommend?
Thanks in advance for any advice you can offer … Gary