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ScubaAmy's avatar
ScubaAmy
Explorer
Nov 09, 2025
Solved

Switching toilets

I have a 2019 kz connect travel trailer, the previous owners put a bidet on the toilet. I am taking it out and putting a natures head composting toilet in, what can I do either water line going to bidet and what’s best to cover hole to black tank?

 

  • Take the tee off the water line and put a valve on instead. Then just turn the valve to the “off” position.

    For the black tank, get the proper size “test plug”, stick it in the end of the pipe and screw it down tight.

7 Replies

  • just looking at your picture again, is there a panel you can pull on that shelving unit, or does the skirting on the tub come off easy?  that plastic pipe would be better off being replaced frrom the source but if you can't get at it then manybe just put a plug cover on, or add a valve in its location.  usaly there is a way to get at plumbing.  

    • way2roll's avatar
      way2roll
      Trailblazer

      That's what I meant when I said I'd replace the flex tubing with Pex. The whole length from the source, because it's likely this flex tubing goes back to the water pump (or a junction off of it)  (and this flex tubing is probably also connected to the water heater, kitchen sink - everywhere) In this case you could probably get to most of it for the toilet supply. Those kick panels under the shower usually come off easily. I'd be as intrusive as I'd need to be because when it develops a leak you'll have to do it anyway. OP never came back so probably a moot point and we have no idea what solution was actually applied. 

      FWIW - been looking at new RVs, specifically Super Cs and I have been amazed at how many "high end" manufacturers use this flex tubing crimped to improper fittings. Even on the water heater which experiences all kinds of expansion/contraction. Tiffin, Newmar etc. atrocious. Helping me narrow down to Renegade. They seem to be the only Super C manufacturer that not only uses all PEX and fittings, but shark bite fittings on the pump, water heater etc to do repairs without having to cut the lines. As I get older I am more interested in what I can't see on RVs than what I can. 

      • StirCrazy's avatar
        StirCrazy
        Moderator

        ya I don't think that was factory, its using gear clamps.  normaly the factory still uses crimp fittings when they use the wrong tubing haha.

        I have very minimal "Non" pex in my cougar, I was surprised, and it is all where it is easy to get at like under a sink or what not.  It is on my list to change out to all pex and the proper coper ring crimps not the little end crimps they like to use, but I want to totaly redo the truck camper first as I think it is all the grey polly B or what ever it was they used in rv's in the 90's.  its small, restrictive, and uses rubber compression for sealing that is a pain to work with and prone to leakes.  

        I am not sure I would ever want shark bite on a mobile instalation, heck I don't even like them in a home, they are the most prone to leaking of all the "pex" fittings, but I can see why people use them, aside from being easy you don't have to buy the expensive crimpers.  I still like my good old copper ring crimp, but I do have the different tools for doing it, including ones that are made for tight spaces.

  • Yes, replace the T. Personally, I'd replace the plumbing with PEX and proper fittings and crimps. That flex tubing connected to a brass fitting with a hose clamp is begging for a leak down the road. Shameful RV manufacturers use this crap.  

    • StirCrazy's avatar
      StirCrazy
      Moderator

      yup, using pex line on non pex pipe that will losen up over time should be banned in the rv industry.  Personaly I think there needs to be more regulation, then maybe companys will put out a product thats worth the price.  

  • Take the tee off the water line and put a valve on instead. Then just turn the valve to the “off” position.

    For the black tank, get the proper size “test plug”, stick it in the end of the pipe and screw it down tight.