? Procedure when using a dump site

[BobWilson]

When you have full hook-ups it is easy to dump and rinse the toilet. But what about when you have to drive to a dump site? Obviously you are going to have to close down the TM to drive there.

Do you pull the toilet valve open at the floor, before you close down the TM, so it will be ready to drain when you drive up to the dump site?

Does the valve stay open?

If you are going home and not going to use the toilet for a month or more is it a good idea to rinse out the toilet to purge everything out? In that case you are going to have to open up the TM, rinse, empty the septic system at home, and dispose of it there right?
Otherwise you would have to open up the TM at the dump site which doesn't seem practical with a line of people behind you.

Bob W.