Re: [A/S] RV Pad – Sewer Hook-up Question

["Christopher45103" <blickcd@xxxxxxx>]

I will say no trap.

The only time you will smell any sewer gases is when you open the 
cover, which is outside your house, and then you will be connecting a 
sewer hose to it, sealing with a donut or similar.

Sewer gas may go up thru your gray water tank (assuming an open dump 
valve) and out thru the vent on the trailer's roof, but that is 
normal and the way it works at a full hookup campsite, which is in a 
sense what you have.

Since there will be water in the traps of the sinks and shower in the 
trailer, no gas will get inside.

Christopher