"Something that helps things 'slip and slide' when needed is a spray bottle with a fairly heavy mix of liquid soap. A quick spray before use is all it takes." Rumor has it, haven't tried it myself, that using a spray can of "PAM" or some such as a pretreatment of the bowl works wonders. YMMV.Dale MC8
The key to a good flushing RV pot is related to locating the pottie as directly above the black holding tank as possible. This requires some planning.China is nice, but Sealand is a complicated item compared to a standard RV unit. My experience (good many years in the marine industry) indicates a higher maintenance cost. Sealand has sunk their share of boats...alas, another subject...ain't gonna sink any buses. One thing that will damage all potties is freezing weather. Always drain and blow out, or antifreeze potties when winterizing.My dos centavos, JR