Are composting toilets plumbing?

摘要

At the IAPMO Plumbing Technical Committee meeting in Denver, Colorado, there were many changes proposed to add requirements from the IAPMO WE-Stand to the appendix of the Uniform Plumbing Code. You would think that adding requirements from one document to another would be automatic. However, that is rarely the case. The Plumbing TC often has a different opinion regarding water conservation provisions than the WE-Stand Committee. There were three code changes dealing with composting toilets. The question that arises for these code changes is, "Are composting toilets plumbing?"