1967 Overlander Waste tank plan

[1967Over_Int]

I’m in the middle of floor repair and waste tank replacement as well as gray tank addition. I’ve started a thread in the 65-69 Overlander trailer section. If you have questions comments please respond there as I want to keep it all in one link. I’m drawing up my waste system using CAD and thought I might share. Tank info found in original thread.

Had time at lunch to add in concept drain route. First two pics are from top views, last two pics are bottom views. Still deciding if I’m going to use a conventional pee trap or Hepvo for the shower. I’ll add one more CAD pic with labels maybe tomorrow if I get time.

[57Vintage]

Have you found grey water tanks the correct width to allow you to run the drain from the front GW tank past the rear GW tank? That was a problem for me, but I believe my 1958 is narrower between frame rails (51" wide, 4" high) than yours. That's why I spaced out the tanks with an access bay between each tank.



The yellow indicates tank layout; left to right: fresh water, grey, grey, black. The red lines are conduit runs inside the belly pan/access bays. The green lines are GW drain lines.

[1967Over_Int]

My inner frame width at the bottom flange is 54 1/2", so yes it's a bit wider than yours. I'm planning on using the VTS-851 gray tanks (Vintage Trailer Supply). The dimensions on the tanks is 50x21x4.