Several members here have made emergency backup systems for the macerator systems
I had to install the sweeping wye, with emergency dump port, that goes between the holding tanks and the macerator, since that was no OEM installed in 2007. I chose to just leave the dump plug in place and have a fitting and 2" flat hose stowed on board.
When the dump plug is removed, there are a couple gallons of liquid (of what ever liquid was last dumped) that comes out before the fitting and hose can be put inplace. This can be caught in a suitable plastic container and disposed in the dump hole. This liquid can't be pumped by the macerator since the macerator is mounted upside down and the inlet slot is at the top of the macerator inlet.
If I ever have to use this while on a trip, my plan is to dump at a campground where I have plenty of time (not at a dump station open to all). I will pull in forward so the dump hole is on the passenger side.
I chose to use a 2" flat hose because it stores in a small roll. the 90 goes on the hose far end to insert into the dump hole.
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