Waterless urinal for campervans, motorhomes and narrowboats
Wall-mounted waterless urinal for campervans, motorhomes, converted minibuses, and glamping cabins. Hangs on a thin partition, urine drains separately into a canister or connects to the onboard tank. No plumbing, no pump.
Why the cassette and separation toilet in a campervan fill up so quickly
In a campervan for two, the main volume in the toilet is liquid. The cassette toilet has to be emptied every day or two, and emptying at a dump station or roadside restroom is the worst part of the trip. A compact separation toilet (Trelino, BOXIO, CompoCloset) reduces the problem, but its small liquid waste canister still overflows in a couple of days.
Pi-Pi solves exactly this part: a man urinates standing, against the wall, without water, and all the liquid goes into a separate canister. The cassette or composting chamber lasts several times longer, and emptying from a flat canister takes just a few minutes.
Technical facts
- Weight 1.4–1.5 kg: attaches to a thin plywood partition of a conversion or board without wall reinforcement
- Material LLDPE: operating range −40…+60 °C, does not crack in an unheated van in winter and does not soften in the heat under the roof in summer
- Installation 5–7 minutes: no plumber and no special tools required
- Stepped nozzle Ø24/32/40 mm: connects to a flexible hose to the canister or onboard tank without adapters
- Standard: closed top, for installation without ventilation — optimal if you do not need to route the pipe through the roof
- Standard Plus: top opening Ø70 mm for connection to ventilation through the roof or toilet exhaust
What to do with collected urine
- To the dump station: flat canister empties in a couple of minutes, without the hassle of a heavy cassette
- As fertilizer at the campsite: dilution 1:10 with water — plant feeding if camping with the landowner's permission
Pi-Pi provides a separate liquid circuit for campervan toilets
The Thetford cassette toilet or a separation toilet in a campervan fills with liquid in a day or two if two people are traveling — and emptying the cassette remains the most unpleasant task on the road. Pi-Pi is a separate wall-mounted urinal: a man uses it standing up, and urine goes directly into a canister under the bed or into the onboard tank. Your toilet cassette receives almost only feces and lasts for days, not hours.
- Trelino, BOXIO: compact models for van life, with two users the canister overflows in a couple of days — Pi-Pi diverts all liquid from them
- Kildwick, CompoCloset (Cuddy): lower drainage Standard goes into a separate tank, the upper Ø70 mm on Standard Plus connects to ventilation through the roof
- Cassette toilet: Pi-Pi unloads the cassette, and the interval between emptying increases several times
Installation on a thin partition: weighing 1.4 kg allows the urinal to be hung on a plywood wall of a converted van or board without reinforcement.
Have Questions?
Got a question? Message me — I'll help you pick the right model for your garden shed or toilet setup and sort out delivery. I respond within one business day.
Mart Tamm
Account Manager for United Kingdom
Have questions about products, pricing, or partnership? Email me directly — I'll respond personally.