Filter Sand in My Pool

I changed my sand in the Swimpro filter, assembled the hose, turned on the filter, then the sand started coming into the pool.

I tried to backwash for a few minutes, reset it, and again it came back in the pool. I don't know what is going on.


Hi. When you change the sand in a sand filter it's important to put enough water in the bottom of the tank to cover the laterals. If this was not done they may have become damaged.

The two most common places for sand to get through the filter and back into the pool are the laterals and the multi port valve. The laterals could be damaged or not firmly in place. The valve may have a worn spider gasket which is letting the sand through.

It's also possible that to much sand was added. If you think all of these things are OK you may let it run for a few days and see if the problem takes care of itself.

Anyone else having had the same problem immediately after changing the sand let us know what it was and how you fixed it.