Ok, so we started slamming about a week and a half ago because of what looked like algae growing on the sides/bottom of the pool. Looks like a copper/light sand color...pool was a yellowish tint. Not a terrible case of it I thought...so we started our slam. I dosed the pool with acid to bring the ph into range first, then we brought chlorine to a 21 (CYA was 53)...We have been doing this about a week and a half. Dosing the pool with chlorine back up to slam level at least twice a day. We haven't brushed the pool every single day but we have tried to stay on top of it. Last night we passed the OCLT test, and then tonight saw another shadowing of the same algae stuff as before we started the SLAM. Not sure if we're dealing with mustard alagae?? Or did we do something wrong with the slam?? Was hoping to swim soon.
Also, last week we found the culprit of the algae - inside our pool ladder. Half of the ladder sits permanently inside the pool and has a few holes in it, but we're thinking the circulation is not getting enough chlorine inside?? Not sure how long the ladder has been growing algae inside...but it was gross when we finally pulled it out. Figured it wouldn't take long to finish SLAMMING after that was out....but here we are again.... Anyone else have problems with their pool ladder? Also this whole problem started because our FC level dropped too low - it was a 1 the day we found the "algae" in the pool...on the sides and bottom...if that's what it was... We have an SWG and we weren't letting it run long enough during the day...to conserve electricity with the pool pump running. Obviously that wasn't worth it!
Any help would be appreciated - thanks!