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focstay's avatar
focstay
Explorer
May 16, 2015

2007 5th wheel Chapparral 267RLS discharge confusion

Hello,
My newly purchased unit has a 1-1/2 discharge line which I suspect is the grey water.
The large dia. 4 inch or so, which disappears forward a few feet and is across from the toilet. This is likely the black water.
They join to one discharge.
On my last unit I emptied the grey water tank through the black tank.
I'm not sure how to do this as there is a pull valve on each line. It appears to empty each tank separately.
Can anyone clue me in?
  • ChuckV1's avatar
    ChuckV1
    Explorer
    May 17, 2015
    If you look at the handles one will be black and the
    other gray. The small line/pipe is the gray water and
    the larger is the black water. As the OP stated empty
    black 1st and gray 2nd
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    May 16, 2015
    Hook up sewer hose to that 'common' 3" line

    Open black tank 3" drain valve
    When black tank is empty-----------use flush connection on side of rig to flush black tank.
    Close drain valve

    Open grey tank 1 1/2" drain valve
    Drain grey tank
    Close drain valve

    Add some water back into black tank......2 full toilet bowls flush is good. Keeps bottom of tank wet
  • ScottG's avatar
    ScottG
    Nomad
    May 16, 2015
    Empty the black first and then open the valve to the grey to rinse the hose out.

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