White flakes in water

[steveinaz]

Here's some updated numbers (tests redone last night), I don't know where I got the first set--my apologies:

FC=typically 3-6ppm (currently 65% output on SWCG/8hrs filtering/day)
CC=0
pH=requires 3 cups of muriatic once a week to maintain 7.6
TA=180ppm
CH=710ppm
CYA=was 60ppm, more CYA added last night
Salt=2600ppm (2250-2750 recommended by Manufacturer)

I added CYA last night to bring it up to 80ppm, but have to wait a day or two for it to settle in for an accurate reading.

My pH basically holds for 3 days, then needs muriatic to correct. 2 seasons ago, I just started checking every Saturday and correcting to simplify things--I've got the "pattern" of my water down well through the last 4 seasons, and this is the first issue I've had. I've never had any CC in the pools history, nor any need to add anything other than CYA and Muriatic. I'll go back to checking pH every other day and correcting--this fall I'll do some partial drains to get my calcium level in check.

Thanks all for the information, Evan I'll likely try the borate "trick" as well.