Sani flush check value

[GJLEBRUN]

Location of sani flush vacuum check value on Heartland Bighorn fifth wheel 3575EL

 

[david-steph2018]

The check valve should be between the inlet and the black tank. Check the rear of the UDC panel. Follow the water line from the back of the inlet to the black tank.

https://manuals.heartlandowners.org/manuals/Plumbing/Tanks/Black%20Tank%20Flusher2_Install_.pdf

 

[travelin2]

See my reply on your other post