Sand in pool and backwash

[EdKuhn]

Hi, I have noticed with my pool that a bit of sand collects in one of the corners and is picked up by the Polaris cleaner. Looks blackish maybe some white flecks. I've also noticed when I backwash that some brown sand comes out of the discharge, at the very beginning of the backwash. Do these symptoms indicate a broken lateral? I was considering cleaning the sand filter today but if I have something broken I'll wait until I clear out the whole thing. Thanks

 

[zea3]

Go ahead and open up the filter and inspect the spider gasket. It should be stuck down tight with no loose or worn down spots. If the gasket is good, get a tarp or a wheelbarrow and scoop the sand into it and inspect the laterals. Note the sand level before you empty it out. It should not be more than 2/3-3/4 full. Too much sand, bad spider gasket or bad lateral could cause that issue.

 

[EdKuhn]

Go ahead and open up the filter and inspect the spider gasket. It should be stuck down tight with no loose or worn down spots. If the gasket is good, get a tarp or a wheelbarrow and scoop the sand into it and inspect the laterals. Note the sand level before you empty it out. It should not be more than 2/3-3/4 full. Too much sand, bad spider gasket or bad lateral could cause that issue.

The spider gasket is in the multi-port valve, correct?

 

[zea3]

Yes.