End of June I started a SLAM and finished with it July 15. Brushed and vacuumed every day, took out the ladder and cleaned every crevice with a toothbrush and paintbrush, cleaned the return jet and skimmer. Passed all 3 criteria for ending SLAM and even continued it an extra 3 days so I was sure I was done. Water was so incredibly beautiful.
Thursday I brushed and vacuumed but we had a cold spell here so no one has been in the pool since Friday. I left the cover on but tested every night and added chlorine to keep my fc at 7. The lowest it ever got was 5.5. CC was always 0 or def less than .5. Water stayed super clear. Sunday night I saw what I thought was some dirt at the bottom but the pool is close to pine trees and the little brown things they give off disintegrate in the water and collect in piles and so I just went on my merry way. Didn't check the pool Monday night since I was only adding chlorine every other day.
Last night the bottom of the pool was covered in algae. Absolutely covered except for a giant (almost the width of the pool) eyeball shaped patch of completely clear floor, where I assume the chlorine flowed after I would pour it in at night in front of the return.
The water was still completely clear. FC was 6.5 and CC was 0.
So now I've started the SLAM again. But where did I go wrong? Is it bad circulation? I was running my pump on low from 4pm till midnight every night. I'd add chlorine between 7pm and 9pm so at minimum it would have 3 hours to circulate.
Test results:
FC: 6.5 last night, 18.5 this morning
CC: less than .5
CYA: 40
Ph: 7.2
TA: 140
I was so proud of how beautiful the water was and I can't even bring myself to tell my husband we're back to square 0 again. Any help is so gratefully appreciated. I'll be over here crying in my coffee while I wait.
Thursday I brushed and vacuumed but we had a cold spell here so no one has been in the pool since Friday. I left the cover on but tested every night and added chlorine to keep my fc at 7. The lowest it ever got was 5.5. CC was always 0 or def less than .5. Water stayed super clear. Sunday night I saw what I thought was some dirt at the bottom but the pool is close to pine trees and the little brown things they give off disintegrate in the water and collect in piles and so I just went on my merry way. Didn't check the pool Monday night since I was only adding chlorine every other day.
Last night the bottom of the pool was covered in algae. Absolutely covered except for a giant (almost the width of the pool) eyeball shaped patch of completely clear floor, where I assume the chlorine flowed after I would pour it in at night in front of the return.
The water was still completely clear. FC was 6.5 and CC was 0.
So now I've started the SLAM again. But where did I go wrong? Is it bad circulation? I was running my pump on low from 4pm till midnight every night. I'd add chlorine between 7pm and 9pm so at minimum it would have 3 hours to circulate.
Test results:
FC: 6.5 last night, 18.5 this morning
CC: less than .5
CYA: 40
Ph: 7.2
TA: 140
I was so proud of how beautiful the water was and I can't even bring myself to tell my husband we're back to square 0 again. Any help is so gratefully appreciated. I'll be over here crying in my coffee while I wait.