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Stutch's avatar
Stutch
Explorer
Mar 09, 2015

Dumping a black tank of MH that has macerating toilets

Hey all!!! Our new Newmar 4018 has 2 macerating toilets. Anyone have experience with the process to dump the black tank WITHOUT having to use the 3" hose?

My thought was that a sewer cap with a standard 3/4" hose and let gravity do the rest. Does this sound right?

If you've done this what are you using for a hose?

Thanks
  • Why not use a clear fitting + standard sewer hose so u can see the output? Make a decision later.
  • The macerator is a poop processor. There are two intents. First no clogged sewer hoses (full size) and second, no poop mountain. The second intent is best served with the use of lots of water.
  • LOL.... That's what I was afraid of. What's the point of macerating toilets if you still have to use a 3" hose. My understanding is that the macerator pulverizes to a point where the result is basically dirty liquid. Nothing big enough to clog.

    You are right... The last thing I want to do is have to disconnect this hose if things aren't flowing!
  • can you find something at home depot, etc., that is smaller than a stinky slinky but larger than a garden hose? most of the advantage of a macerating setup is not using a stinky slinky.
    I drained my black tank with a sewer solution and a macerator pump thru a 3/4 " or thereabouts hose that came with the SS so don't know why that wouldn't work unless macerating toilets don't work as well?
    bumpy
  • Not something I would be trusting. Clearing a clogged a 3/4 inch hose that is clogged with effluent would be something I would avoid like the plague! I would use a standard size sewer hose and not risk a clog.
  • Drain outflow? The cap is a standard 3" cap with a male fitting that is for a standard garden hose. I believe it is designed for allowing the Gray Tank to be left open.

    I purchased the campsite sewer adapter from Cleandump. It has a 3/4" adapter. So, I think I am asking... will gravity allow a macerated black tank to flow through a 3/4" hose.