When using a vault toilet….

valhalla360 wrote:

JaxDad wrote:
A friend of mine has a self-built Super C along the lines of what I’m currently building, it has a “vault toilet”, or as he calls it, “an indoor outhouse”.

It’s a cabinet of sorts with 2 large compartments, one is vented to the outside and with a sealed hinged lid over a hole and seat, the other a lift up lid. Under the seat is a stout (small) rubber garbage can. The second compartment is just the size to hold a bale / brick of sphagnum (pear) moss that you would normally use in the garden. To start there’s a thin layer of moss on the bottom of the receptacle then after each ‘addition’ another thin layer is sprinkled over top of it.

I’ve been in his unit after more than a week of him staying in it and tell you, there is zero odour.

The garbage can gets lined with a large sized biodegradable green bin liner inside a stout garbage bag. He has researched it all out, it’s completely legit to place it in the recycling stream, which he does.

I’m landing on doing the same thing in my unit.

Full disclosure, I grew up with outhouses at the farm, cottage, deer camp, etc, etc, so using one is pretty normal to me.

You are describing a "composting toilet".

I wouldn't recommend one for an RV (too easy to empty the holding tanks to be worth while for 99% of RVers) but we had one on our boat (much more of a hassle to empty the holding tank legally).

No, this isn’t a composting toilet.

As I clearly indicated it’s emptied of its contents, likely more often than conventional holding tanks are. The moss is only there as absorbent and odour suppression material.

A composting toilet digests the material during the composting process.