Re: Installation of Dometic 320 Toilet Reply #25 – November 28, 2015, 08:43:19 am To the best of my recollection, our flange is flush with the tile rather than on top of it or installed on a plywood spacer. We installed a Dometic 320 to replace the ill advised residential toilet in our coach. It went fine and is definitely air/water tight as I have first hand experience of what it's like if it's not There may be a small gap but the sides of the toilet support the weight without trouble and the foam donut is sealed. Quote Selected
Re: Installation of Dometic 320 Toilet Reply #26 – November 28, 2015, 09:32:50 am Hi Mark, Did your coach come with the residential toilet? What were the big problems?Raymond Quote Selected
Re: Installation of Dometic 320 Toilet Reply #27 – November 28, 2015, 03:55:13 pm I don't know who installed it. I highly doubt Foretravel did it as whoever did it used a wax gasket which simply cannot work in the long term in a motorhome (it melts and leaks). The toilet was an astoundingly heavy Kohler with an extra long bowl that made it somewhat complicated to even pull up your shorts (we have a separate small toilet room). The biggest problem is that the black tank filled in 3 days versus 2 weeks for the Dometic 320 and our usage. We eventually got to the point of not flushing for every number 1 which got disgusting quickly.BUT. We probably used it incorrectly if you think about it. The huge water usage of the residential toilet is designed to flush all the solids properly. Therefore most likely nothing would ever clog if you just left the black tank open. In that case, it could be a nice upgrade if you're not on the road much. You would never have to touch the hoses/valves when on hookups. Quote Selected