Pool: 10,500 gallon above ground
Equipment: Hayward 1 hp pump & Hayward S166t sand filter (100# capacity)
To begin, I removed the cover from my pool exactly 2 weeks ago, and found it to be full of green algae. I will detail below exactly everything that has been done to the pool, and the outcome.
2 weeks ago:
Dark Green Cloudy water
Started Pump & Filter
Shocked with 4 - 1# bags of powdered Aqua Chem brand shock
Foam and bubbles started forming on the surface, but subsided after a few days.
10 days ago:
Milky green water
Brought all chemicals up to the correct levels.
Vacuumed, and brushed all debris from pool
Pump still running
7 days ago
Milky gray water
Tested levels and brought free chlorine back up to correct level.
5 days ago
Changed sand in filter
Drained pool to 1/2 mark per pool sales associates instructions
Brought water level back up, and corrected chem levels
Added 2 gal. of liquid bleach at 6% instead of powder shock
3 days ago
Brushed and vaccumed pool again. More algae !
Water still milky white
Added 1 gal. bleach and tested FC levels. Levels were good.
Water started turning a slight milky green color again.
Chem levels ok.
Brushed and vacuumed pool again!
Light Milky Green colored water with 6" visibility.
Now, my pump has been running this entire time with the exception of the hour it took me to change the sand media.
I backwash and rinse every time the pressure gauge goes 7 above 'clean' pressure.
My water is still a murky, milky green color with very little visibility.
What am I doing wrong?