So we were out of town, pool turned green, cleared it up but during the week of recovery it started to turn green again so I tried just keeping the chlorine levels high like you're supposed to and it wasn't working. But the weird thing is I was maintaining chlorine levels overnight so not sure why it was still trying green.
When I first started battling the algae after vacation everything was good except ph was as low as it will read and cya was a tad low. I think this was my first mistake, I raised both after the green went away to try and maintain chlorine levels. However cya has maintained pretty steady at 100 (again, odd?) but ph went Up though is down to about 7.8 now.
Ta is normal and I've been keeping fc and tc levels high to no avail. So (2nd mistake) I have tried shock (both trichlor and dichlor at seperate times) which I think is what messed up ph. I even tried algaecide.
I've battled algae successfully before so I'm trying to figure out what I'm doing differently/wrong.
5000gallon above ground pool, brought temp down to around 80 as it was quite warm, sand filter