Failed to consider the size of the Portable Dump tank..

I have never come close to filling the black tank and if I did I would not want to handle it twice.

I think I would hitch up, drive to the dump station, return and re-park. It would seem to be a lot less hassle over all to me.

I certainly would not order another tank until I found out if I needed one.

The same goes for solar power, extra batteries, oversized propane tanks and a host of other "must haves".

A few trips out and you will know what you must have and what is already suffucient for YOUR needs.