cleaning sump

[Madreefer]

I clean mine once a month. I have my sump in the basement and my tank on the main floor. It's easier for me to do my water change from the sump and I just scrub it with a rag and use a pump to get the water out. What little water and crap that is left behind I suck up with a wet/dry shop vac that has only ever been used for that purpose.