[encantotom]

yea, that wont really work on this one. the vent would be by the bedroom window of the coach staying there.

tom

[rheavn]

Clarke,
Please explain the reasoning behind your posting.

http://www.sanidumps.com/faq/faq_18.php

This web site recommends "at least a 4" pipe". Also every rv park I have been in on my current trip has had a 4" sewer pipe.

[encantotom]

Steve. How big is your septic tank.

I can always have them run 4 inch from the stubbed out clean out took the tank as well. I believe code let's u goi up one size down line. And if possible I will have its own run into tank

Good discussion. Thanks

Tom

[Chester Stone]

I agree with Steve. I would go with the 4" because the extra capacity will insure no backup. I have a 3" pipe where I dump my coach and unless there is a good seal exiting the flex RV hose and the sewer, leakage occurs.

[rheavn]

Tom,
My tank is a 1250 gallon.

[lbrachfe]

4" as all the sewer hose end fittings can be used on 3,4 and 5 inch recievers and anything in between