Installing Marine Elegance on MS 390

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Dave, please re read my question. I know you can use both and I also prefer the 1". BUT, the existing fittings are 1-1/2" so an adapter is needed.

What do you use?
 
I googled 1” to 1.5” pvc adapter. This is one of the results. There are lots of adapters out there. I tried copying the photo but it wouldn’t copy. It has hose barbs on each side.

1-1/2" x 1" PVC Reducer Insert Coupling (Insert x Insert)
 
I don’t understand, why isn’t it available locally?
 
Installed Marine Elegance on MS390

So, having read all of the above comments and with considerable input from Jamie out on the West Coast, I decided to go ahead and install a Raritan Marine Elegance freshwater only toilet. A couple of things mostly unique to me, 1. I already had installed one 6-7 years ago on my Gemini 105 Catamarran and loved it and 2. my recently acquired MS390 was in fresh water for 20 years out of 21 which meant that there hadn’t been any appreciable salt water to gum up the discharge hose. I checked that hose and it didn’t have any odor so decided not to replace it which saved a ton of time and money as 25’+ of good discharge hose is very expensive. So fresh water only option. Anyway, following Jamie’s advice and looking at his pictures, got started a few days ago.

My plan was to remove the old toilet and put a 1” piece of Starboard on the base covering up the existing holes and to also put a piece of 1/4” Starboard on the back, slanted wall once all my cutouts were done. This would enable me to Raise the standard height new toilet to same height as old one and give me great flexibility to cut extra holes as needed for running electric and hoses. Jamie had the good luck to be able to pull the existing electric back from the pump and use it to feed new electric wire and the new fresh water hose. Unfortunately, I wasn’t so lucky, even though our boats are same model and same year, could not budge the wires. So needed to cut access holes (see pictures)

Had to cut two large holes in wall of vanity to be able to run the wires and fresh water hose which was Tee’d in cold water under sink. These are not noticeable but will add some flex tubing to neaten up a bit but for now, they are fine. But importantly, the boat’s fresh water hoses are NOT pex and have a slightly smaller diameter so couldn’t use press on type fittings and they also didn’t play well with hose clamps (way too stiff) so had to use pex cinch rings after much experimenting. Then ran pex to toilet. Covered the blue pex line with white flex electric tubing which makes it barely noticeable.

On the back slanted wall following Jamie’s lead, cut out enough of the wall so as to be able to slide the toilet into it allowing its base to sit completely on the existing ledge covered with the 1”Starboard. It’s back far enough that it’s not a tripping hazard, prob about same overhang as before with old toilet.

Made new hole for the controls and very simple to connect up wires, discharge hose and freshwater. Used 3/4” plug from Lowes to fill in where old push switch was and 1/2” plugs to fill in where screw holes on 1” Starboard. Caulked the 1/4” back board to make a neat appearance.

I chose the 4 way panel for controls, one button is to have a single light flush, one gives a sequential flush for solids, one is just to add water if needed and one is to just empty the bowl.

It works great, looks great and gives a great flush, much much quieter than the old one and all around a great upgrade

Thank you Jamie and all of you that had provided advice.
 

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Raritan Marine Elegance

My pictures got all messed up when loading, I can send directly to anyone who wants them. Sorry
 
We installed a Raritan Elegance 7 yrs ago with zero problems. I recently purchased a backup solenoid valve and joker valves just in case.Not anticipating a problem what so ever but better on have on hand.
 
I have a 24 volt Marine Elegance on order. I am going to get rid of the Vacuflush head. I will replace all the current 1.5” discharge hose with 1” hose, SaniFlex hose. Raritan now makes a wireless control unit so I ordered that with the head. One less cable to run. I am hoping that I can run the new 1” discharge hose through parts of the old 1.5” hose. The 1” hose has an OD of 1.375” so maybe with a lot of cable lube I will be able to slide the new hose through parts of the old hose where I can’t get to the old hose. Formula secured the old hose very well so even if the new hose will not go through the old hose the old hose will probably have to stay where it is.
 

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