I have had a pool since 2001, never really messed with testing water, and was really lucky. I simply added chlorine when water was cloudy. That was on city water.
Now I have rusty, well water for 3rd year and have nothing but trouble. I converted from DE to a sand filter last year thinking pump was problem. I use a filter on fresh water but it is still really hard. I will replace liner this season after patching many holes last year. This was probably due to not maintaining proper chemical balances in water.
Obviously, I haven't had a clue as to what I was doing to this point.
This season, I added a salt water chlorine generator and have an even bigger mess. I had started testing water but couldn't get the chlorine levels up (other readings had been fine except CH high too). Last week, I went from crystal clean water to pea soup in 3 days. I shocked the heck out of it and it's better but still have algae growing. I found this web site and wish I'd known about it before.
Tonights readings are: ph 8.2, FC 0.5, TA 270, CH 380, CYA 100 .....help!! What do I use to lower ph? Do I lower ph before bleach?
I am running pump 24/7 and will turn off SWG. it's a 24ft round 52" hign above ground.
FYI: I'm in the midwest and we've had unusual amounts of rain and extreme changes from 68-91 degree weather this June.. if it matters.