I've recently had to clean my 75 gallon sump after 3 years of running . took me about 8 hrs to get most of the mud off the bottom of the tank , it sits under a 180 gallon and moving was not an option (it was put it from the back entrance of the stand). Siphoning the mud out was not possible due to the sump being on the ground level. i was using a small eheim pump which was not powerful enough and literally had to go through the cycle of unplug/clean the impleller/reprime about a 100 times. Does anyone has a good setup for a system that make this job any easier?