One of the pools I now work on is an indoor bromine double treadmill pool (plaster, ~ 10 X 45', 3.5 -> 4.5', 'reverse sport pool', bromine (tablet feeder), 7000 gal. ~ 5 months old)
As said, this pool has 2 high flow 'aqua treadmill' jets, one at either end.
The pH is always on the high side. SI (from Taylor watergram - sorry, no full #s) is .25 @ pH = 7.4 [my bad, I adjusted the pH down to 7.4, from ~8.0] before running the full tests, ~ 6 hours later
From memory: the TA was 70 and the CH was 230. Temp is maintained @ 81*
Whenever I add acid to this pool to lower the constantly 7.8+ pH - it looks like I added pee to the pool - i.e. a yellow cloud where the acid was poured.
This is a new one for me; is it the bromine, the high pH, or metal (which I doubt)?
This pool will only be running for another week before it's closed and I'd like to address any issue before it gets ignored for 6 months
Thank you my TFP friends, for any insight you may be able to shed