calcium and vinyl


LifeTime Supporter
Aug 26, 2007
I think I may have read on here that calcium hardness was not necessary in a vinyl pool? I had to go by my pool store today so I took a water sample to let them test and they are wanting me to add several pounds of calcium to my water. Am I correct in thinking that calcium is not needed in a vinyl pool? I have no heaters or a SWG or solar equipment if that matters....