Hey all! I have a 27.5k gallon pool with a liner. It turned green so I followed all the steps to slam it. I passed the OCDT and my combined chlorine was good, and I vacuumed out all the algae I could see. The water was as clear as can be. But I have 2 issues/ questions.
1. When I brushed the bottom of the pool I would still get a cloud to appear. Hard to tell if it was gray or green. Does this mean I need to keep slamming or I need to vacuum every inch of the pool even where I can't see algae? How do I get rid of this cloud. (Question 2 might help)
2. After slamming, my FC never dropped below 3.5 ppm (30 CYA). However, a few days later there appears to be some green again. It wasn't all over the walls but there was definitely green in all the corners and then there was streaks of green across the bottom of the pool. (I'm suspicious that my circulation and filtration might not be ideal) The green substance looked like a powder. I'm sure it's algae. Anyways, does this mean I stopped slamming too early? Is this new algae or did I never fully get rid of the existing algae? Is this related to the cloud I'd see when brushing? Where did I go wrong with slamming? I don't see how it could be growing with the FC never dropping below 3.5. pH and alkalinity and everything else is at good levels. Phosphates are a tad high.
1. When I brushed the bottom of the pool I would still get a cloud to appear. Hard to tell if it was gray or green. Does this mean I need to keep slamming or I need to vacuum every inch of the pool even where I can't see algae? How do I get rid of this cloud. (Question 2 might help)
2. After slamming, my FC never dropped below 3.5 ppm (30 CYA). However, a few days later there appears to be some green again. It wasn't all over the walls but there was definitely green in all the corners and then there was streaks of green across the bottom of the pool. (I'm suspicious that my circulation and filtration might not be ideal) The green substance looked like a powder. I'm sure it's algae. Anyways, does this mean I stopped slamming too early? Is this new algae or did I never fully get rid of the existing algae? Is this related to the cloud I'd see when brushing? Where did I go wrong with slamming? I don't see how it could be growing with the FC never dropping below 3.5. pH and alkalinity and everything else is at good levels. Phosphates are a tad high.