Yes, dissolved copper sulfate first.
2pm pH 8.3, 2am 8.2 per my sons boss at the city pool today.
I have some paperwork on Phos level, I just have to find it now, lol... I had our local City water dept check all parameters they could and their check of pH samples was nearly identical to city pool admins pH numbers.
Ok, Found it. Says PO4 profile 0.015 and a note "This is first readable value above zero".
Last edited by Snipe; 08/07/19 10:39 PM.
