i flush and while the flush is going i rinse the bowl to get any stains that i couldn’t pee off, so as to not have to scrub as often. all you have to do is attach a T-joint to the water line coming to the toilet, assuming it’s not those damn 7/8" fill valves (my ACE doesn’t have 7/8" T-joints). then when you move out, plug the line you remove.