Tanks not draining.
I have a travel trailer that is permanently hooked into a sewer system. Today when my guests left neither the grey or black water tanks will drain. There is not an obstruction that is visible. Seems odd that they both will not drain. I reached a 9ga wire into the gray water tank and didn't seem to hit any obstruction. A little water came out while I was working the wire around. I have two vent pipe that don't seem plugged. Any ideas?
__________________
|