Anonymous wrote:You will never get this sort of problem if you use Pool Quartz which is a 100% Quartz plaster
Re the Calcium Build Up. There are several reasons the water and the type of plaster one manufacture recomends the adding of Calplus every 6 months.
There is one chap who Grit blasts (using glass beads) but this is mainly on the water line tiles, using acid well to suggest that you would need to be a total idiot because it will possibly do more harm than you have now.
I would like to know what type of plaster you have on the pool.
You give now indication to where you are, if you are in NZ call me. I may be able to help you.