Do I buy a new filter?

[CarlD]

For the past two seasons my sand filter has put "dust/debris like bugs, loose bristles from the vacuum" back into the pool. I've checked the laterals, replaced the stand pipe, replaced the spider gasket, changed from sand to Zeobrite. Put some electrical tape where the stand pipe meets the top of the filter to make sure debris wasn't going through that way.

I don't know what else to do, my husband says no big deal we just vacuum it up, for me it drives me absolutely nuts. This dust/debris is just thrown in the pool when the filter first starts up. I have been using panty hose on the return and the pool is spotless but panty hose flying from the return looks kind of ugly

Do I just buy a new sand filter at this point? Or just deal with it and vacuum more often? Or any other suggestions on what to change/replace on the filter?

My guess? Your pump is too big! 1.5 hp??? I have 20,000 gallon, with solar panels and I run 1 hp with a 200 lb sand filter. The MORE hp you have, the more likely you are to blow sand through.