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Most Recent Three Posts
- IdahoDoug
  
  Posted 5 hours ago
  
  Idaho Doug's Sunrader build
  
  Agree. So the grey water tank leaked on our first trip. I pulled it to find prior damage repaired with fiberglas - which does not stick well to the Polyethylene these tanks are made of:
  
  Huge hole - entire corner missing as if the tank strap failed and it dragged on the ground:
  
  I used physics to determine the tank is Polyethylene (PE) after knowledgable folks insisted it was Polypropylene (PP). On research, PE sinks in vegetable oil, and PP floats. Then I ordered a plastic welding tool and PE plastic welding rods on Amazon. Luckily before welding it shut I tested the "PE" rods and found they were PP which will stick poorly and fail. Found another source, and the test confirmed it was the correct material. All cheap cutting boards were PE forever, but now they are all PP, so there is/has been an industry transformation and now PE is difficult to source. I needed a plate to used to patch the hole and made this discovery when the Amazon "PE" cutting board turned out to be PP, and I went to KMart, Target, Walmart etc and all their plastic cutting boards are also PP which is useless to me. So be advised if you try this at home, get your plastic patch and materials from a proper plastic supplier that knows the difference, which is where I found the white PE to use for a patch. The welding itself was actually quite fast and simple. I did a couple laps around, adding more material by melting the rods into the seam. We tested it with air pressure and it is air tight. And because I did the material research, I am very confident in the structural soundness as well:
- Ctgriffi
  
  Posted Monday at 04:39 PM (edited)
  
  Idaho Doug's Sunrader build
  
  On 10/9/2026 at 8:58 PM, IdahoDoug said:
  
  ... I stained some quarter round and am still deliberating whether to put it down as it's under the aforementioned edges and can't really be seen. What do you think?
  
  Sounds like you could/should just skip the quarter round to me, if it looks okay. Honestly, I think it's a big plus that, if it ever came to it down the road, you could pretty easily yank that carpet out and swap in new without much time or trouble.
  Edited Monday at 04:39 PM by Ctgriffi
- IdahoDoug
  
  Posted Monday at 01:30 AM
  
  1982 22R - Okay to remove A/C belt which also powers smog/air pump?
  
  Fred - I put the "No A/C" belt on today and thought of you as I briefly felt smug, then remembered it was not my idea, but a distant friend on this great forum. Thank you - bomb proof solution, which is what I needed as we are headed up to remote British Columbia on Thursday for the first serious trip. A tip o' the hat to you!