I have a new Intex sand filter pump (3000gph) for my above ground Coleman pool that each day when I start it up sprays a quick puff of sand into the pool and the runs beautifully. No other spitting of sand ever occurs so I don’t think the laterals are cracked, but maybe it’s a seal issue of some sort? Or is it normal that a puff (almost like a quick exhale) of sand spits out at startup? Does anyone have any insight on this? Thanks in advance for any help you can offer.