Two great bits of info.

[BC Cargo]

Here are two of my favorite cargo camping related web links/tips.

How to make your trailer lights flash if you have to disconnect it from the vehicle. (Note: must have an on board battery that is charged by the vehicle…like most travel trailers.)
http://rvbasics.com/techtips/emergency- ... ights.html

Where to find a free sani dump station to empty your porta potty.
http://www.sanidumps.com/citylist.php

[pete42]

I knew about the flashing lamp trick but not the dump station site
thanks
Pete