My pool is about 15 years old, but I have only owned it for 1 1/2 years. I started out knowing absolutely ZERO about pools and have made a lot of mistakes, but learned so much in less than 3 seasons. I assume I made a season long mistake this year by not being more vigilant about my ph levels. They were always up and I added acid every week, but every time I checked they seldom were below 7.8. I THINK I kept other numbers in range.
So this is what happened...Almost all of a sudden my pool surface got rough and rougher and insanely rough. There were also large groups (like 3 feet wide) of white dots which were equally rough, but even where there were no dots it was rough. Least rough was on steps. Also, there were wild white swashes of color down from the sides and into the pool bottom (like what would result from a pouring of something). None of this was there early this season.
Am I right to blame this on my not keeping my ph down? I keep reading that gunite pools have rough surfaces. They say that like it is inevitable and not a chemical imbalance. Is that it?
Mostly, what do I do? Acid wash? Use an electric type sander and grind it down? Or new plaster? What about paint?
(Also, if someone could explain the difference between etching and scaling I would appreciate it!)
THANK YOU SO VERY MUCH FOR ANY HELP!!!!