I added 2 jugs of bleach and a 4 cups of borax last night.
And about 2 hours later I had a ph of 7.5 and chlo of around 13 off chart provided! As of this a.m. It was same chlo and just slight drop in ph!

I have been reading about the cya and figure I would just start vacuuming to waste and refill as a way to lower it!

I also tested the fill water and it checked at ph 7.5and chlo 3.0 straight out of the tap.
So this shouldn't throw me off too bad when I refill!

Question is ( is 13 high enough or should I go higher until my cya drops?