I have a 30,000 gal pool with 800 gal attached spa. Have had scaling on the spa for years and I'm ready to take care of it. Was going to try an acid was first. What concentration muriatic acid should I have? I have the 31% stuff - how much would you recommend diluting it?
Scaling is only in the spa - pool is generally fine.
Scaling is only in the spa - pool is generally fine.