Just had PB finish our pool's PebbleSheen re-plaster (well, the local PB's version of it). I was expecting an acid startup based on discussions with them- though it turns out last year they switched i up and went with what I'm calling an "accelerated" acid startup. As soon as the pool was refilled, an awful lot of acid went in, because there was never any dust pushed around when it got brushed the first time roughly a day after it was filled (or, maybe with this sort of finish with less exposed plaster, it really wasn't "accelerated" at all with additional acid and it was expected). This was Thursday.
The builder includes once daily brushing for a week and all chemicals. Based on the notes they're leaving, they've already started adding chlorine and stabilizer. With my own testing, I saw:
Friday (before PB added any chemicals)- FC=0 CC=1 (is CC accurate in this case?) pH=7.2 Alk=35-40 Calcium=175
Saturday- PB added Cl, CYA, acid
Sunday- FC=0 CC=1 pH=7.8 Alk=45 CYA=0 (at least, TF100 kit showed no cloudiness at all, so it's well under 20) Calcium=175
They don't come on Sundays so that explains the pH rise- I need to watch the pH a little more carefully myself.
Questions- they've already started chlorinating (though not quite enough)- which means I need to get everything in line here ASAP, correct (most immediately is alkalinity)? Is there any reason to keep it low? Also, I'll be chlorinating using 6% bleach and a Stenner. What are the appropriate levels I want to use here? Back when I used to use the Liqudator, I kept CYA~50 and alkalinity in the 70-80 range if I'm remembering correctly. For a new pebblesheen finish + bleach feeder, what sort of levels do I want to aim for?
Thank you!
The builder includes once daily brushing for a week and all chemicals. Based on the notes they're leaving, they've already started adding chlorine and stabilizer. With my own testing, I saw:
Friday (before PB added any chemicals)- FC=0 CC=1 (is CC accurate in this case?) pH=7.2 Alk=35-40 Calcium=175
Saturday- PB added Cl, CYA, acid
Sunday- FC=0 CC=1 pH=7.8 Alk=45 CYA=0 (at least, TF100 kit showed no cloudiness at all, so it's well under 20) Calcium=175
They don't come on Sundays so that explains the pH rise- I need to watch the pH a little more carefully myself.
Questions- they've already started chlorinating (though not quite enough)- which means I need to get everything in line here ASAP, correct (most immediately is alkalinity)? Is there any reason to keep it low? Also, I'll be chlorinating using 6% bleach and a Stenner. What are the appropriate levels I want to use here? Back when I used to use the Liqudator, I kept CYA~50 and alkalinity in the 70-80 range if I'm remembering correctly. For a new pebblesheen finish + bleach feeder, what sort of levels do I want to aim for?
Thank you!