|Sand or DE is entering the pool
||If you have a sand filter it may be the channeling
if you have a sand filter it may have mud balls
if you have a DE filter, the DE may have coagulated or solidified
if you have a DE filter, the DE isn’t adequately coating the grids
if you have a cartridge filter, its fabric may be torn, allowing unfiltered water to pass through the backwash valve isn’t fully closed.If you have a sand filter, the lateral may be broken
If you have a DE filter, the filter on the filter grid may be torn or worn.
|Channeling refers to formation of channels in thousand bed, which allows water to pass through unfiltered. Backwash the filter to redistribute the sand.
Check the water level to make sure air isn’t getting into the system. If the filter hasn’t been backwashed consistently, mud balls have formed. Or the sand may have calcified and is no longer able to filter out dirt. Remove the affected sand and replace it with fresh sand.
Backwash the filter. If you notice hardening of the DE cake, remove the grids and clean the elements, following the manufacturers instructions. Reassemble the filter and add fresh DE. Make sure the pump and filter are sized accordingly.
Make sure the DE slurry isn’t being fed into the skimmer too quickly. Replace the damaged cartridge. Close the backwash valve. Replace the broken lateral. Repair any small holes with fingernail polish or silicon sealer. Replace severely damaged filter elements.