Conventional fixture, minimises water use per flush while still relying on a wet treatment system.
Cost
Low
Upkeep
Occasional
Skill to build
Basic
Lifespan
Fixture itself: 25-50 years (vitreous china rarely wears out; flush valve/fill mechanism needs replacement every 5-10 years)
Embodied carbon
Low
Space / material use
Low
Output timing
Continuous process
Skill to repair
Basic
Regulation (FR example)
On-site sanitation (assainissement non collectif): the installation must be declared to and approved by the local SPANC before work starts, and is subject to periodic inspection. Arrete du 7 septembre 2009 modifie.
Note: Cost, carbon and footprint are rated against the other options for this same need, not in absolute terms.
General toilet-fixture industry durability consensus
What this page does not tell you
No sizing or quantities: how much a technique yields, and how much a household needs, both depend on the build and the people, so the catalogue compares options rather than dimensioning them. It carries no bill of materials and no build sequence, and it is written for an oceanic, clay-soil climate (Normandy, France). Regulatory notes are indicative and need confirming locally.