Home Forums Truck Camper Adventure Forum Add cassette toilet to camper?

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    • #24714
      AZBears
      Participant

      Hi fellow truck campers. I’m looking at buying a used Hallmark Guanella. Was hoping to turn up a model with the optional cassette toilet installed at the back, but that seems unlikely in my price range. I’m wondering about a DIY install of a toilet such as the Thetford C224-CW, which has its’ own water supply. I believe this would fit in the area behind the dinette, where there is currently a storage cabinet. Has anyone ever attempted an installation, or is this something best left to the pros?
      I’m factoring in the additional weight FYI, before someone brings it up!

      Here’s the link to the Thetford product: https://www.thetford.com/product/c220-cassette-toilets/
      (at the bottom of the page)

      Thanks for your thoughts.

    • #24722
      Mello Mike
      Keymaster

      Sounds doable to me. Have you contacted Hallmark to get their take on the matter?

      • #24798
        AZBears
        Participant

        A call to Hallmark is on the list. They’ve closed up shop for a vacation but I’ll talk with them at some point.

    • #24790
      Dietrich Kanzler
      Participant

      I added a Thetford Curve to my Northstar TC800. Carries its own water and empties like a cassette. But does not require cutting a hole in the camper wall for access to the cassette.
      I also adapted a cabinet next to the dinette and made the cabinet top slide into a slot as a privacy screen.

      Attachments:
      • #24800
        AZBears
        Participant

        Dietrich, thanks for sharing a picture. I see that the Thetford Curve is more like a traditional porta-potty, but well worth considering since we wouldn’t have to cut a hole in the camper. Have you had any issues with yours?

    • #24792
      Dietrich Kanzler
      Participant

      I added a Thetford Curve to my Northstar TC800. Carries its own water and empties like a cassette. But does not require cutting a hole in the camper wall for access to the cassette.
      I also adapted a cabinet next to the dinette and made the cabinet top slide into a slot as a privacy screen.

      Like this.

      Attachments:
    • #24811
      shellie barnes
      Participant

      So I had the theford curve all last summer in my SS550 when I traveled to/from and the summer in Alaska. It performed flawlessly in all parameters. I love it’s simplicity, quality, and operational abilities such as ease of dumping the cassette. Will be taking it back for next summer’s Alaska adventure indeed

    • #24812
      Dietrich Kanzler
      Participant

      Dietrich, thanks for sharing a picture. I see that the Thetford Curve is more like a traditional porta-potty, but well worth considering since we wouldn’t have to cut a hole in the camper. Have you had any issues with yours?

      Have had no issues. Things I like about it; taller than other porta potties, battery operated flush pump, a floor mounting plate is available, Swivelling dump tube like a cassette.

      Wife likes it a lot…absolutely hates pit toilets.

      The only negative is that a full black tank can be quite heavy and it does not have wheels. I carry a folding dolly for that and other stuff in camp.

    • #24905
      Anonymous
      Inactive

      super simple install, for the Thetford. Note that the wall gasket and access panel is a separate option. I built my own door, but need to get the factory gasket

    • #24907
      Anonymous
      Inactive

      shop online for pricing, there is a wide range of pricing out there on the Thetford cassette offering.

    • #37945
      AZBears
      Participant

      An update to my original post. We got the Hallmark Guanella about a year ago this March and got it out 3 or 4 times over the summer. It turned out that we couldn’t spare the storage space the rear cabinet afforded. (My husband, ever wary of being stranded somewhere and not having a tool or supply may be over-doing it a little…but since we exclusively camp in remote areas I can’t fault him too much.) We ended up getting A CleanWaste Go Anywhere portable toilet system, which folds down to briefcase size and weighs 7 pounds. Maybe if we add storage boxes of some kind to the rear, we’d be able to make the modification.

    • #43324
      Chris
      Participant

      I’ve been thinking about this since the day I got my camper. Even with proper “waste management” the ridiculously small (7 gallon) black tank is useless for more than a weekend with my daughter and me. The cassette would offer more options, and would free up a little much needed storage space too.

    • #43499
      Utah Mike
      Participant

      Dietrich, I like your solution to this problem. I have been considering the same on my TC800.I hate the portages poddy I have now. Too short. What did you do for a top piece on the commode?
      Mike

    • #43513
      Dietrich Kanzler
      Participant

      Dietrich, I like your solution to this problem. I have been considering the same on my TC800.I hate the portages poddy I have now. Too short. What did you do for a top piece on the commode?

      Mike

      The Thetford was just the right height to fit in the dinette cabinet next to the door once the cabinet door had been modified. The original cabinet top panel is now used to cover the Thetford Curve and make the dinette back to the way it came from the factory. I simply added a spacer to where it was needed.

    • #49735
      Utah Mike
      Participant

      I also added a Thetford 565P to my Northstar TC800. I adapted the cabinet at the camper rear next to the dinette and outside door. To keep it simple, the toilet will slide out into th aisle for use. My wife occasionally sleeps on the dinette bed.

      Original picture minus door.

      All ripped out. Glue and staples are hard to remove.

      Toilet fits!

      New door made with mdx and veneer, and stained to match.

      Attachments:
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