Filter Puking Sand Into Above Ground Pool

[CT-Mike]

I am trying to open the pool, but my filter keeps puking sand into the pool and doesn't seem to be filtering at all. I did disassemble the filter last weekend and replaced a few broken septums. I also disassembled the diverter valve and verified that the sealing ridges between compartments were intact.

What else should I check?

Thanks,

Mike

 

[duraleigh]

Are you positive it is sand? Can you capture it between your thumb and forefinger and take it out of the pool and is it grainy and gritty?

 

[CT-Mike]

Yup, it is filter sand. I scoop under the pump discharge with a fine net and it is clearly sand.