This page deals with the gutting and modification of the aft bathroom and changing the location of the wash basin, which was for some strange reason in the bedroom, not the bathroom.
The whole aft bathroom was gutted as part of the hot tub installation which was the only way we could get the new bath in. The dirty old manual toilet was discarded, along with the small wash basin. Next the bulkhead and door to the bathroom was removed completely. After installation of the hot tub the bulkhead was repositioned at a different angle, to allow a new wash basin to be incorporated inside the bathroom.
I spent a lot of time researching toilets and waste disposal/holding methods—lovely job! I asked various cruising forums members what they used and how they liked them, and finally decided on the Raritan Elegance electric model. This has a full size seat and people who had them were happy with them.
Along with deciding on the actual toilet(s), I was also forced to consider how best to actually dispose of the waste. The boat had a built-in holding tank of some 50 gallons amidships which, according to the previous owner, was connected to both toilets.
So much for sellers honesty, (or surveyors expertise), because neither of the heads were connected and both discharged directly overboard, which is totally illegal anywhere inside territorial America, and so it should be. I actually had no decision to make about whether to reconnect the holding tank, because it was discovered to have more holes than a colander, so we chopped it out. (removal of holding tank)
I did fully consider the, “one electric, one manual” concept, which means you are not totally dependent on electricity for this very necessary function. But with eight batteries, a 6.5kw generator and wind generator, I am fairly certain we will be able to keep at least one toilet operational.
A manual toilet is just as likely to break down as a modern electric model. Two different toilets also means two sets of spare parts, so I decided to bite the bullet and have both electric. The Elegance electric toilet is extremely well made, with a powerful macerator which, (they say), will shoot the stuff along a 30 foot pipe and ten feet high if necessary.
Raritan also makes two Coast Guard approved waste treatment systems which don’t need holding tanks. I choose the Purasan, which uses a chlorinator to percolate chlorine into the water/waste making it legal for overboard discharge. We now have two excellent full size toilets, and don’t have to even think about emptying smelly holding tanks, etc.