I purchased a house with a pool, and just got moved in. This is the first pool I have owned. Honestly, the water looked great before these tests, crystal clear, no algae or anything, but enough of that. Let's get to the numbers, and it doesn't look good:
FC < 0.5
CC = 0
TA = 270
CH >= 600
PH >= 8.2
CYA >= 400
This was my first time with the TF kit, so my numbers may be a little off, hence the ambiguity above. The guy I bought the house from exclusively used the chlorine pucks.
After these tests, I added ~40oz of 14.5% muriatic acid, roughly the same amount of 10% liquid chlorine (what was left, plus it was stored outside, and I am unaware of the age), and tossed the last two pucks of chlorine he left me in the floater.
Anyway, here in AZ, I don't really plan to close it down but the water is too cold to swim, so what to do? I know some significant water replacement is in order. The pool does have an auto-leveler, is pumping water out via the pump and relying on the auto-leveler to replace water a plausible solution? Not all at once of course, but gradually? If this is plausible, how gradually? I suppose I should test my fill water for CH also?
Thanks in advance for any other advice you have, I look forward to maintaining proper chemistry for years to come!