Bryant-
Which type of head did you install?
1.) A plumbed flush type with a holding tank, which must be pumped out.
2.) A self contained "dry" type, like the AirHead.
3.) Some sort of self contained unit like the Porta Potty, which "flushes", is self contained, and has its own built holding tank.
I'm just interested in how you solved some of the problems involved in the installation, particularly made more difficult with the lack of an "underspace" in a CD-22, which would lie between the cabin floor and the outer hull on most larger boats.
It's the same type of problem faced by Europeans when they wanted to solve the problems when adding indoor plumbing and then flush toilets to older housing units 150 years or so ago.
In order to "plumb" a bathroom, they usually installed the plumbing above the existing floor, then installed a second, raised floor over the original to cover up the pipes. That's why you have to "step up" when going into the bathroom in these older homes and other forms of housing.
Joe. :teeth :thup