Community Forums

cruizerEd · 02-26-2017, 10:33 AM

Are there any tricks for reworking PVC (2-1/2) with short runs. I have to rework some plumbing but there is practically no place to cut out the problem sections and use coupling to patch in the new parts. For this I'll probably just rework everything but I still end up with a problem in the basement. How do I do the last three connections where I come off an elbow in to a pipe and that pipe will have to go into a coupling about a foot later. There doesn't look like there will be enough room to flex things to get the pipe into the to couplings not to mention getting the parts in and twisted in the 3 seconds you have between applying the glue and twisting the pipe.

The issue is with an Winnebago 2013 36M. I've attached a picture to give a little context but it doesn't show the short runs.

The drain pipe for the sinks on the slide is leaking. Winnebago implemented the drain by using two elbows that are threaded so that the fittings tighten a loosen by about 1/16 of a turn when the slide moves in or out. What they screwed up is that on the turn down into the basement they used a male threaded adapter going up into a female thread elbow. After a few years of full timing the small movement in this threaded fitting has worn enough to leak while draining. My fix will be to replace the female threaded elbow with a male threaded elbow up into the female elbow and use plumbers grease on the fittings.

Thank you for considering my quandary.

cruzbill · 02-26-2017, 10:54 AM

Would a flex coupling work for your delimma? Calder Style Couplings for Sales by Joints Couplings

KF5UMC · 02-26-2017, 11:15 AM

I was wondering if you can use an adjustable compression fitting...I used this to splice a pvc pipe together. They sell them at Home Depot or Lowes. See link (as example) and video...

Homewerks Worldwide Llc 2 in. Adjustable PVC Coupling 511-53-2-2B

https://www.youtube.com/watch?v=t8A1hCJjgwU

The good thing is once it's all glued together, you can screw the fitting together and not try to glue the parts at the same time. Other options is to replace pvc with flex tubing.

Good luck

MisterT · 02-26-2017, 11:30 AM

most coach builders who have models with sinks in slide rooms may use this type of flexible drain line, like under my kitchen sink...

cruizerEd · 02-26-2017, 01:03 PM

I'll be sure to get a flex as an option.

cruizerEd · 02-26-2017, 01:15 PM

Considering this is just a drain I think that the compression fitting is a great idea. I think you solved how I can finish this up.

Thank you.

cruizerEd · 02-26-2017, 01:19 PM

KE5UMC suggestion of a compression coupling will probably let me finish that last connection in.

Thank you for all the help. Hopefully I can do this in just one trip to THD.