RV Repair: Gray tank leak, rubber grommet, p traps

Question
Ho do I get to the pipe that goes from the shower to the grey tank when using the shower the water comes out the top of the tank I think the pipe is broken.2006 Coachman
Mirada 348ds

Answer
Hi Greg
The pipe probably was never seated deep enough into a rubber grommet in the top of the tank and then worked its way out.
If its the shower drain the it has a "p" trap, and all "p" traps have access panels that are screwed in place to allow for service. That panel should be on a wall the other side of the shower wall or even in the floor under the rig. Find that and you should find the top of the tank. That might be the easy part. If can get there force the pipe back into the grommet then smear some silicone around the union to "maybe" hold it in place.
Good Luck.

Thom
RV-PHD