I'm now in my 2nd summer of inground plaster pool ownership and just about as long as a firm BBB believer. For the most part I've been able to maintain a crystal clear pool all season so far with only about a 96oz bottle or two of chlorine a day. My chemical levels have been spot on against the recommended levels.
Last week I went away for the work week on business, and so threw in 4 pucks and then just had my better half add a 96oz bottle of bleach in every night. Seems to have worked just fine. CYA increased by about 10 - which I expected.
However, this week my Calcium level seems to have suddenly increased. What would be the main cause of such an increase? Rain??
My current levels are:
FC - 2
CC - 0
TC - 2
pH - 7.8
TA - 80
CH - 420 (has been in the 250-300 range all season)
CYA - 60
Temp - 82
Everything I read says more calcium is better than less, but the range seems to be no more than 350. So is going higher than this a problem?
I have a large group coming this weekend and I'm sure there will be splashout, and since I'm seeing the filter pressure increase I'll do a backwash on Friday probably, before the weekend party. Should I be looking to get some more water replaced prior to all this to bring the CH level down? Or is my 420 level not of concern?