Originally Posted by todd135
Just figured out my bathroom sink is plumbed to my blackwater tank. Called FR and they confirmed that is correct. Cant say i like that. Also sometimes our bathroom sink doesnt want to drain and if you step on the toilet flush it can shoot a big air/water bubble out of the sink or toilet
Wonder why they did that . in my 29 i have two greys one for kiitchen and one for bath shower and lav . if it's not draining and when you flush toilet it splashes out it means the vent pipe is clogged . fell down into the tank or was never installed . you can go on roof find the vent pipe take the cover off and see if it slipped down into the tank .