Two into one sewer dump mod?

GLMPNG

Member
So I have been contemplating reconfiguring the sewer piping outlets on my 2018 NorthTrail 31BHDD.
Because it has dual Grey water tanks, there are two dump valves about 3’ apart. It gets annoying having to disconnect one and hook it to the other every time I want to drain the tanks, and it extremely difficult to use a eye connector to connect them together. I would like to hardpipe them together with one opening, or build a hard pipe deal that connects the two together, and hen the flex hose hooks to that. I am a service plumber by trade, so it’s a very doable project for me, just looking for some ideas to make it efficient.
Have any of you done something like this?
 

CarterKraft

Well-known member
This is on my to do list.

My galley drain is behind the rear axles as well but I am just going to run 2" up front to the #1 gray pipe.
Use weld on fittings at the rear 3" for annual power dumps and new 2" for tank doubling and normal camp site draining.
 

GLMPNG

Member
So I finally had a chance to change up my dumps. Here’s what I came up with. All in about $30 in parts. Before and after.
 

Attachments

  • ABD41599-E15F-475C-9688-9EE8769220ED.jpg
    ABD41599-E15F-475C-9688-9EE8769220ED.jpg
    184.9 KB · Views: 95
  • 2D959051-B1D2-470A-913B-BD40672081E7.jpg
    2D959051-B1D2-470A-913B-BD40672081E7.jpg
    203.7 KB · Views: 95
  • 8F4D4B71-3749-45BF-939B-906BEFCD2DAA.jpg
    8F4D4B71-3749-45BF-939B-906BEFCD2DAA.jpg
    109.2 KB · Views: 87

Shortest Straw

Caught In A Mosh
So I finally had a chance to change up my dumps. Here’s what I came up with. All in about $30 in parts. Before and after.

Strong work! Looks like a professional job. Where you able to get enough slope for flow from one to the other?
 
Top