I opened up our pool about 2 weeks ago to find it green and we accidentally let the cover drop in the pool with all the debris on it! This is our first time having a pool over the winter so it's the first time we opened a pool after winter too.
Anyway, I used some concentrated algecide that i already had from last summer. I don't know if it had copper in it or not. I have a sand filter and a SWG. I shocked and bumpped up the SWG to 12 hr cycles to super chlorinate for the first week. Green is all gone, debris has been all cleaned out, bottom is clear, and water levels (except CYA - which seems to be zero) are fine.
The problem: My SWG is pushing out a cloudy white substance and as a result the water is very cloudy white. I can see the bottom through it though just not clear. I decided to clean the SWG out via a vinager soak although it didn't look like there was any build up. I also shocked the pool again yesterday (1 wk after the first shock).
The 2nd Problem: Since I put the SWG back together, it keeps getting a low flow signal BUT the flow is great as well as suction at the skimmer. I can hear the flow flapper going up and down so I know it's flowing - any ideas?
FYI - test results
FC = 5
CC = .5
TC = dark yellow (high maybe 10)
PH = 7.8
AK = 100
Hardness = 160 (I think this is high but it's a vinyl pool)
CYA = filled up the view tube and black dot was very visible
Salt is right on for my pool size
Thanks in advance.