Originally Posted by mira1
I have the additional macerator pump there is a 1" hose that goes to a 3in outlet when I hook up my 3in hose and pull the valve nothing happens till I press the red button on door jam then it dumps.
Sounds like it depends on where the second macerator discharges. Not sure why they'd have it discharge into a 3" hose.
In my Airstream Avenue, I too have a macerator toilet to get the poo from the bathroom over to the black tank. Then, I have a second macerator pump positioned after
the gray/black dump valves that discharges through it's own 1" hose. The macerator is permanently mounted but it just twists onto the 3" bayonet fitting and is supported by a large "U" clamp.