Having issues with new plaster and can not figure it out. 26,000 gallon pool was re plastered 2 years ago with a pebble finish. There were white streaks so pool plasterer suggested and did a no drain acid wash last year. It seemed to work and streaks look much better. But then I was getting white powder on bottom of the pool and thought it was DE. Changed all the grids and went through filter with pool company. But still problem persisted. I then noticed that I was getting white powder dust coming off the walls while I brushed it. It persisted the rest of the year. The Plasterer said its still curing and could be some calcium coming off. I closed the pool and figured it should be fine this year. Well, its still there a year later. The pool plasterer came out and said he thinks its calcium since its a white powder and was not sure why its still coming off the walls.
My chemical levels have been pretty good
Hardness 220
TC 3
FC 3
ph 7.5
TA 90
CYA 45
Salt 3000
I've kept this range for the most part of 2 years. The PH would would rise to 7.8 for even 8 but I would ad Muriatic acid to bring it down to 7.4 to 7.6
The pool guy suggests raising calcium to about 250 or a little more but he seemed stumped
Can anyone give
My chemical levels have been pretty good
Hardness 220
TC 3
FC 3
ph 7.5
TA 90
CYA 45
Salt 3000
I've kept this range for the most part of 2 years. The PH would would rise to 7.8 for even 8 but I would ad Muriatic acid to bring it down to 7.4 to 7.6
The pool guy suggests raising calcium to about 250 or a little more but he seemed stumped
Can anyone give