My gunite pool and spa are about 7 years old. Last year I had them professionaly drained and acid washed. Immediately after I noticed that the plaster is wearing off in many places. Although the pool still looks Ok, (mostly because it is deeper I think) the spa looks pretty bad. It seems to be mostly cosmetic at this point so I figured I would just get my spa redone this year and wait a year to do the rest of the pool. After being quoted $1000, I thought maybe I should just paint the spa for now. There are many sites online trying to sell different types of paint for pools. Any thoughts?