SketchUp Composting Toilet File for Tiny House Drawings

composting toilet


Many tiny house owners choose to install commercially manufactured composting toilets. These toilets collect and compost the deposits right inside the lower tank. They don’t typically use any water and instead dry the waste using a small heater and fan. Air is drawn through the waste and out of the unit at the top through a vent pipe. From time to time the compost is removed by the homeowner and used on ornamental plants in the yard.

These are different from Lovable Loos, which are simply a box with a bucket and toilet seat. Lovable Loos, RV toilets, and normal flush toilets are smaller by comparison. So use this drawing if you are designing a bathroom that can accommodate one of these. This drawing is modeled loosely after a Sun-Mar toilet design.

Download the Composting Toilet Drawing

Is there a plumber in the house?

I posted the story of Little Fort Repose last night and then had a conversation with Heather via email about tiny house plumbing. Her questions hinge around how to adapt RV water storage tanks (potable, grey, black) to a tiny house. It then occurred to me that we might be able to shed some light on the topic by asking folks to share their tiny house plumbing experiences with us here in the comments of this post.

Have you tackled tiny house plumbing? Can you help point Heather (and other tiny house owner-builders) in the right direction? Thanks!

Photo credit to John Wells. It’s the facilities at The Field Lab.