Hi all. I bought a house a couple of years ago that came with a 20-year old 18k-gallon gunite pool. The plaster finish was not in great shape when I bought it -- lots of pits on the bottom and crumbling on the stairs and below the tile line -- and has gotten worse lately. I added about 40 lbs of calcium chloride to get the calcium hardness up, so who knows if that was ever balanced by the previous owner. I know it will need to be refinished, but my question is how urgent this need is, as I know it's going to be expensive. If the pits get down to the underlying concrete, will that get damaged and cause a bigger problem? Anything else to worry about besides the cosmetics? Thanks for any advice on urgency, and if anyone has input on the best approaches to refinishing, I'd appreciate that as well.