07/05/2026
We have a Brinkley G4100 that has the Waterless pTrap. This is how we removed and cleaned the one in our kitchen.
First step is to remove the 4 screws holding the cover on.
Second step is to remove the pTrap (the white piece).
Once removed we could see how nasty this piece gets. We have only been in this RV for 3 months.
The video shows how the rubber inside gets twisted and doesn’t allow the trap to close properly, which is why we get the nasty smells in the sink.
For those of you ordering a replacement, the size on ours is 1 ½”.
Once removed, you can see it has 3 pieces: a hard piece, a rubber piece and the plastic pipe itself.
When reassembling the hard piece should be on the opposite side of the rubber piece.
You can run water through it to see how it works, as the rubber portion opens when water flows through. If it works properly, it will stay closed and prevent smells from coming up through the sink.
I cleaned mine with a soft toothbrush and dawn liquid.
We removed the old Teflon tape and added new before reassembling.
The top coupler must be added first when you reassemble, push to make sure it clicks into place with the longer piece. Then screw the bottom and then the top. Make sure you add back the black seal that sits in the top of the white piece you removed.
Run a leak test before you put your cover back on.