2006 BT Cruiser 5291 Kitchen Sink Backs Up With Empty Gray Tank

[jtford58]

Does any have a schematic for the plumbing of a BT Cruiser 5291? Our kitchen sink starts backing up after about 10 gallons of water with the Gray tank empty.. We have already changed out the pipe vents.

 

[wildtoad]

If the kitchen sink backs up, does the shower also backup? When it starts to backup will it eventually drain?

 

[jtford58]

No the shower drains fine, so does the bathroom sink. Trap is clear. New inside vents.

 

[jtford58]

yes eventually drains
.

 

[jtford58]

Does any have a schematic for the plumbing of a BT Cruiser 5291? Our kitchen sink starts backing up after about 10 gallons of water with the Gray tank empty.. We have already changed out the pipe vents.

We fixed the problem by removing the pipe vent and installing a tube to act at as vent, Out the water heater compartment attached to a vent type cap on the door. Everything drains properly now.