New to this site. Not new to pools, just new to in ground pools. I have knowledge of chemical balancing. I opened this year without much problem. The local company that services pools is closing and I will undoubtedly be referring back to this site often in order to learn what I might have them do. I have a couple questions I need answered right now so I'll get right down to it. Oh yea, high desert in washington state with 100+ summers and -20 winters.