I don't have much to offer but, yes, I have heard of the pump blowing debris THROUGH a filter but I think that only refers to a sand filter.....can't imagine that with a cartridge unless there's some damage.
The pump is HUGE if it's a true 3hp but, if you brought it as a set, I imagine it's actually smaller. Is it 220v? How many amps?
Some cartridge experts will probably be along soon to give you some help but I am a sand guy and can offer very little constructive help.
Dave S.
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