The pump is not working though. It had a needle wheel pump rated at 1100 lph.
This is roughly the unit with some minor differences:
Since the pump is broken, what replacement pump can I use that has a needlewheel?
Or just having air intake before the impeller is already good enough ?
Would it be a good idea to drill a hole at the bottom and put the pump underneath so there would be a bit more dwell time compared to the original, which is roughly the middle of the unit already.
Thanks.