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Old 02-12-2019, 02:30 PM   #1
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Questions about saving the original toilet

I've been pouring over all of the coach conversion projects that I can find and virtually no one is making use of the original toilets that came in their buses. I am wondering why this is so.

My Prevost has what I consider to be a really quite nice toilet. But I will say that the holding tank is REALLY small. I wonder how difficult it would be to just replace the holding tank with a larger one?

And if that was fairly straight forward, why are not more people making use of the original throne?
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Old 02-12-2019, 02:46 PM   #2
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Compost toilets are so much easier to deal with, dump a bucket in a bag and dispose. Saves the smelly black tank and having to find specific places to dump, etc.
What you want to do is doable and may work for you as the system is already there.
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Old 02-12-2019, 03:32 PM   #3
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I very much like the idea of using a composting toilet. The only thing I was thinking here was that there is already a pooper and it seems silly to take it out if I didn't have to. But, the more I look at it, the more I realize that it really is not going to be all that big of a deal. Hmmmm.

I'll have to think some more on it. That's the Native-American way of my family. We think some more, talk some more, then we think some more after that. LOL

The entire Prevost lavatory is very well laid out and really compact. With the exception of the shower, it has everything. In fact, it even has a powerful vent fan that comes on automatically when the lav is occupied. Those Frenchies thought of everything. It might be fun just to convert it to a composting design.

I also like the idea of having the bathroom all the way in the rear of the coach. We converted a GM4103 many years ago. (...a 1952 model) That bus never came with any sort of lavatory and so, we installed a regular RV throne in a bathroom we built and a holding tank below decks. The bathroom was located at around the middle of the coach. There was one thing about it. Any time one person went in there and did the business, the rest of the family could darn near smell it. It was inescapable. It was like a bad movie: "The Curse of the Floating Air Biscuit!"

I would sure like to avoid this as much as possible on my Prevost.
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Old 02-12-2019, 03:53 PM   #4
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The original toilet that was in my first bus was pretty much like a porta-potty. Somewhat different than a conventional RV toilet.

No "seal" between the black tank and the toilet.

If yours is similar you may find that controlling the odor without very frequent dumps.

Before I removed the original toilet I checked with a local charter operation and asked how they maintained theirs. They dumped daily.
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Old 02-12-2019, 04:31 PM   #5
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The original bathroom usually isn't used because there isn't much room for a big tank so dumps happen often(hehehe). I've heard deleting the bathroom is kind of a pain though. People relocate it to above a bay and place the tank there.
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Old 02-12-2019, 05:14 PM   #6
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Quote:
Originally Posted by Kinson View Post
The original bathroom usually isn't used because there isn't much room for a big tank so dumps happen often(hehehe). I've heard deleting the bathroom is kind of a pain though. People relocate it to above a bay and place the tank there.
If you hear that removing the original bathroom is "kind of" a pain , you were misinformed.....

It is a HUGE PITA!

Been there, done that....
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Old 02-12-2019, 05:36 PM   #7
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If you hear that removing the original bathroom is "kind of" a pain , you were misinformed.....

It is a HUGE PITA!

Been there, done that....
It's been awhile since I've looked at a thread where they delete it so I forget what is involved. I do remember multiple people saying the same thing, I was just trying to soften the blow. Once the bathroom walls are removed, there isn't much else there to the outside correct? Some fabrication would definitely be involved.
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Old 02-13-2019, 12:50 AM   #8
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Quote:
Originally Posted by WoodenYouKnowIt View Post

The entire Prevost lavatory is very well laid out and really compact. With the exception of the shower, it has everything. In fact, it even has a powerful vent fan that comes on automatically when the lav is occupied. Those Frenchies thought of everything. It might be fun just to convert it to a composting design.
Sounds like you've got a NICE gactory bathroom in your coach.

Most people I've seen. . . don't. Its a stainless closet with a toilet seat and a hole on top of the holding tank. Its there if you need it, but no one really wants to use it.
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Old 02-13-2019, 06:51 AM   #9
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I removed Missy's original toilet - some info here and here. It appears that I didn't post nearly enough info/photos as I recall the process of getting that toilet out to be, as Steve says, a HUGE PITA!

In the case of the MCI toilet that I had:
1. The dump is on the wrong side for an RV.
2. It was a "chemical toilet" type of setup that uses the blue liquid stuff. That, IMO, is smelly and not something I want in my home.
3. It was ugly, ugly, ugly (IMO).
4. The tank was far too small for my intended use.
5. It was located in the wrong place for an RV bathroom.

A properly installed and maintained RV style toilet and holding tank do not stink.

Everyone is different and to each his own but if considering a composting toilet, I'd advise thinking carefully and getting some real world experience - with all the options - before making a choice. For me and my style of RV use they are not my first choice.
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Old 02-13-2019, 10:53 AM   #10
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WOW! I've been gone for a little while and, when I get back I see that there has been all kinds of input from you folks. Thank you very much.

I've read through all the posts and I think that I'm going to go ahead and strip the lav out. As much as I like the unit itself, I really do NOT like the chemicals and the location of that ultra tiny holding tank.
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