Posting here for posterity in case anyone else finds it helpful.
Completed in summer 2021
20,000 gallons
Hydrazzo finish
SWCG
450 CH
75 TA
FC around 2 (we keep the pool covered when not in use and we have low usage)
pH all over the place but we shoot for 7.4
Struggled for the last year to manage fast-rising pH, consuming at least half a gallon of 20 baum acid per week and it rose dramatically while shut down over the winter. We had assumed it was the Hydrazzo curing, but after 2 years it wasn't improving so went searching and found this thread.
After reducing TA to 50 last week it appears that we've stopped the pH rise, and levels are much more stable.
Will update if any other troubles arise.
Moved from here.
Completed in summer 2021
20,000 gallons
Hydrazzo finish
SWCG
450 CH
75 TA
FC around 2 (we keep the pool covered when not in use and we have low usage)
pH all over the place but we shoot for 7.4
Struggled for the last year to manage fast-rising pH, consuming at least half a gallon of 20 baum acid per week and it rose dramatically while shut down over the winter. We had assumed it was the Hydrazzo curing, but after 2 years it wasn't improving so went searching and found this thread.
After reducing TA to 50 last week it appears that we've stopped the pH rise, and levels are much more stable.
Will update if any other troubles arise.
Moved from here.
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