I had a similar issue for my sumps and ended up just buying a small 50 gph pump and sticking some clear hose on it. I would put the end in the water bucket and drop the pump in to sump/tank. This works for water change but it doesn't really work for cleaning the tank. For me I was nearly draining my sumps and cleaning by hand then turning the flow back on when maintenance was done. This may not work well since it sounds like you don't want to fully drain the tank right?
this post was submitted on 28 Aug 2023
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