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Doss's avatar
Doss
Explorer
Sep 08, 2016

Separate pipes for black and gray tanks

So we were fortunate enough to pick up a new to us fifth wheel Friday.

One thing I noticed on the walk through is that there is a separate outlet pipe for the gray tanks and the black tank.

I asked the guy about it. He said a lot of people get a Y connector so they can keep both hooked up.

I am not sure I love this. in our old rig, I would dump and rinse the black tank and then dump the gray for a final rinse.

I guess in this, I will dump and rinse black and then connect my hose to gray and dump it.

I don't really want to get a Y because that would mean dragging along another long hose and a short one.

This thing has a nice hose carrier underneath but it is all you can do to get one long hose in it.

It is a small issue in the grand scheme.
  • rhagfo's avatar
    rhagfo
    Explorer III
    4x4van wrote:
    Are the outlets close enough that they could be permanently plumbed together?


    X2!
    one trip to HD could solve this issue! Our Black and grey tanks share a 3" connection, the and are forward of the axles, the galley is at the back of the trailer, and runs to the 3" in a 1-1/2" line from the tank about 12' to 15'.

  • This is what I did:


    90 where the old outlet was.


    View in front of front axle.


    Tee at main outlet.

    I used a pair of rubber connectors (can see in pic) so a section can be removed if the slide mech needs to be accessed. Slope is fine, only have a bit of water that doesn't drain from kitchen tank. Now only one hose needed!!
  • Having two outlets is a pain. Mine are about 10 feet apart and you have to drag hose between them. Would not want a y unless I kept camper in one location. Things were simpler with one outlet.
  • 4x4van's avatar
    4x4van
    Explorer III
    Are the outlets close enough that they could be permanently plumbed together?
  • The two outlets is a pain, but you don't need a y-adapter unless you are in a permanent installation situation, in my opinion. Black water then gray water to rinse your stinky slinky.

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