ok. So I've got some issues in my pool. I've got a series of hairline cracks in the plaster and on some of them, there is a hard solid white growth. I'm assuming calcium.
The plaster company says the plaster has been chemically damaged and needs a drain, an acid wash, polishing, etc. The bill will be over $1,000.
So what I'm trying to understand is what happened, when, to cause this? How long will this calcium growth take to appear? 1 week? 1 month? 6 months? 1 year? I just don't know.
We started doing our own chemistry this year, so have been doing it for not even 3 months. At the beginning, the numbers were all over the place...TA was at 300, FC was at 0, Calcium was at 0, etc.
Over a period of time, we've stabilized the water and gotten TA down, calcium up, pH in balance, CYA present, FC=TC, salt at 3300, etc. I could post recent testing, although I'm not sure it's germane to this particular question.
So again just trying to understand this process of damaging the plaster, what happened, when, and why, so I don't repeat the mistake, whatever mistake has been made.
(I'd post a picture, but the forum tells me I've got 240K of attachments already and I've got no idea what it's talking about since there's no picture on this thread.)
(I also tried giving a link to my picasaweb album where I uploaded the images for my pool builder and the attachment window that pops up says that link is invalid)
Some direct links to the pool plaster underwater pics are: