Sandblasting calcium from pool walls and bottom

[PoolTileCleaner]

What you could do for the plaster surface, is what we do at Surface Renewal, have the tile cleaned by a professional pool tile cleaner. They would use either "glass bead blasting" to remove the deposits from your pool tile or pressure wash with an injection nozzel where they would introduce a mineral to remove it. As far as the plaster is concerned try an acid wash and then hand sand the plaster with 60 grit sand paper. You can check out some before and after pictures here http://www.surfacerenewal1.com We don't service Texas, Yet.