I'm new to this site and hope to get some help.
I have a small (7,500) gallon indoor pool (plaster I assume, it looks like plaster) I just got through draining the pool because the water was getting too hard. I top my pool off with my well water that is pretty hard. Over time the water gets too hard and my understanding is the only solution is to drain and add new water.
I have some copper staining left over from the last time the water got too hard and ate through several copper pipes. My pool guy at the time did some kind of acid wash but wasn't able to get all the stains out. He replaced the copper pipes with pvc before we refilled the pool.
I would like to see if I could get the copper stain off the pool before refilling and am looking for a process that I can do myself.(previous pool guy no longer around so I am the new pool lady)
Any suggestions on what I can use (muriatic acid or something from Jack's Magic)? Is acid wash hard on a plaster pool? Also, any ideas on how to avoid the hard water situation in the first place. Would a whole house water softening system do the trick? I do use algaecide with copper which is recommended for well water. Could that be adding to the copper staining problem? I don't add very much because I don't have that big of an algae problem with the pool being indoors.
Thank you for any advice you can give me!