Detritus in sump

[mr.wilson]

Don't tell me the force of gravity is going top stop you

If your sump is sloped, which can be as easy as shimming it, the detritus will settle at the low end. Set up the shop vac for a quick 10 second suction to pull out the detritus and leave the rest of the water.

[muck]

Used to use a Fluval Canister filter modified with slightly longer hoses. Ran it with no media and output hose in a filtersock. Worked great for me.