Waterless urinal for campervans, motorhomes and narrowboats
Wall-mounted waterless urinal for campervans, motorhomes, van conversions, narrowboats and glamping pods. It hangs on a thin partition with two screws, and the liquid drains separately into a jerrycan or out through the bodywork. No plumbing, no pump.
Why the cassette and the composting loo fill up so fast
In a van with two people aboard, most of what goes into the toilet is liquid. A cassette toilet needs emptying every day or two, and the trip to a chemical-disposal point is the worst part of being on the road. A compact composting loo (Trelino, BOXIO, CompoCloset) eases the problem, but its small liquid jerrycan still overflows in a couple of days.
Pi-Pi solves exactly that part: men go standing, against the wall, with no water, and all the liquid goes into a separate jerrycan. The cassette or composting chamber lasts several times longer, and tipping out a flat jerrycan takes a couple of minutes.
Technical facts
- Weight 1.4–1.5 kg: two screws into a thin ply conversion partition or bulkhead, no wall reinforcement needed
- LLDPE material: operating range −30 to +60 °C — it won't crack in an unheated van in winter or soften in the heat under the roof in summer
- Installation 15–30 minutes: no plumber, no special tools
- Stepped outlet Ø24/32/40 mm: connects to a flexible hose into a jerrycan or out through the bodywork without an adapter
- Standard: closed top, for fitting without ventilation — ideal where you don't want to run a pipe through the roof
- Standard Plus: Ø70 mm top inlet to tie into a roof vent or the toilet's own extract
What to do with the collected liquid
- At a disposal point: a flat jerrycan tips out in a couple of minutes, with none of the wrestling a full cassette involves
- As fertiliser when wild-camping: diluted 1:10 with water it feeds plants, where you're stopped with the landowner's permission
Pi-Pi gives your van toilet a separate liquid circuit
A cassette or composting loo fills with liquid in a day or two when there are two of you on board — and emptying it is the worst job of the trip. Pi-Pi is a separate wall urinal: men use it standing, and the liquid drains straight into a jerrycan under the bed or out through the bodywork. Your toilet then handles almost only solids, so the cassette lasts days rather than hours.
- Trelino, BOXIO: compact van-life units whose small jerrycan overflows in a couple of days with two users — Pi-Pi takes all the liquid off them
- Kildwick, CompoCloset (Cuddy): the Standard bottom outlet feeds a separate tank, the Ø70 mm top inlet on Standard Plus ties into a roof vent
- Cassette toilet: Pi-Pi unloads the cassette, so the interval between dumps grows several times over
Mounts on a thin partition: at 1.4 kg and fixed with two screws, the urinal hangs on a ply conversion wall or a narrowboat bulkhead without any reinforcement.
Urinals for campervans and motorhomes
Pi-Pi Standard
Closed-top body — the simplest way to add a standing urinal to a shed or cabin that doesn't need a vent.
Volume pricing from 10 units
Pi-Pi Standard Plus
A Ø70 mm port on top ties straight into your composting toilet's existing vent — for an enclosed shed, cabin or van where smell has nowhere to escape.
Volume pricing from 10 units
Have Questions?
Contact us — let's discuss terms, calculate costs, and find the right configuration. I respond within one business day.
Mart Tamm
Account Manager for Estonia
Have questions about products, pricing, or partnership? Email me directly — I'll respond personally.