I hope I am not hijacking but I figured I'd ask here instead of starting a new thread. So building my second pool here in Florida and as well all know the calcium is hard. I realize some is needed. So is it acceptable to fill some of the pool with R/O? I was going to throw 3 hoses in the pool and have one of them connected to R/O system. If I can get the calcium even 20% lower I'd be happy as I remember how high mine was in my last house... Any comments?