When using a vault toilet….

Bring two items:

Your own roll ('cause ya' never know if it is stocked, and tis better to know before rather that after if there is enough TP.)

Spring action close pin (for yer nose...LOL)

If they can't figure out how to sit on a toilet seat and take a dump, how can they figure out how to add water to their RV tank, turn on the water pump, step on the foot peddle to add water to the bowl, take a dump, step on the peddle again to get rid of said dump.

Had one many, many years ago at the cottage. In winter everybody had their own individual styrofoam seat.

In cold weather I take a warmer ring to sit on. I love vault toilets as they are hassle free and nothing to break. Quick and easy. Cheers

That's been pretty well answered here:

Surviving a Vault Toilet When Camping