I am a licensed plumber, to get my credentials out of the way. My husband is handicapped and purchased this toilet because he really is better off with the handicap height. This is the absolute worst toilet I have ever used. The installation is no different than any other toilet except perhaps the water supply is a bit forward. No problem with the thing splashing out or anything like that. The elongated bowl plus lack of enough water, plus lack of circulating flush action means a filthy bowl. Period. I have had to push the toilet paper into "position" in order for it to flush...also what goes along with it. This was after 5 attempts the last time. I'm removing it, replacing it with my old one and someday after we've recouped the $100+ plus loss, buy ANOTHER BRAND. I feel bad for anyone who had to pay someone to install this incredible P.O.S.