Hi Everyone,
I have 27' round above ground pool with a brand new liner. About 4 weeks ago or so I noticed some algae on the bottom. Very light and if you weren't looking right at it you wouldn't see it. I shocked my pool, brushed the pool and vacuumed. Everything seemed okay. A week later, I see the same thing happening again. I brushed and vacuumed and it seems good for a few days but then I see green on the bottom again. My pool water is crystal clear and I did an overnight check of the chlorine and I didn't loose any. What's going on? Do I need to shock again? Or do I need to SLAM my pool? I am in CT and will be shutting my pool down on labor day. If I need to shock or slam can I combine that with my normal pool shutdown?
Here are my last few chemistry readings:
pH : 7.3, 7.2, 7.2, 6.8
FC : 14, 6.5, 7.5, 6.5
CC : 0.5, 0.5, 0.5, 0.1
TA : 90, 90, 90 , 90
CYA: 45-50
Thanks for your help!
I have 27' round above ground pool with a brand new liner. About 4 weeks ago or so I noticed some algae on the bottom. Very light and if you weren't looking right at it you wouldn't see it. I shocked my pool, brushed the pool and vacuumed. Everything seemed okay. A week later, I see the same thing happening again. I brushed and vacuumed and it seems good for a few days but then I see green on the bottom again. My pool water is crystal clear and I did an overnight check of the chlorine and I didn't loose any. What's going on? Do I need to shock again? Or do I need to SLAM my pool? I am in CT and will be shutting my pool down on labor day. If I need to shock or slam can I combine that with my normal pool shutdown?
Here are my last few chemistry readings:
pH : 7.3, 7.2, 7.2, 6.8
FC : 14, 6.5, 7.5, 6.5
CC : 0.5, 0.5, 0.5, 0.1
TA : 90, 90, 90 , 90
CYA: 45-50
Thanks for your help!