Waterless urinal for off-grid cabins, smallholdings and summerhouses
Wall-mounted waterless urinal for an off-grid home, farmstead, summer cabin, shepherd's wagon, and small farm. Attaches to any wall, urine drains separately into a canister or connects to a dry toilet. No plumbing, no sewer connection.
Why an off-grid home needs a separate urinal
In a remote home, there is no plumbing or sewer system, and in winter any water pipe risks freezing. A dry or separation toilet (Separett, Biolan, Kildwick, Trelino) handles feces well, but its liquid waste container fills quickly and requires frequent emptying — especially if several people live or stay in the house.
Pi-Pi solves one specific part of the task: separate collection of urine by men standing, against the wall, without water. Your dry toilet's container fills 2–3 times slower, and the system needs to be serviced noticeably less often.
Technical facts
- Material LLDPE: does not crack at −40 °C; operating range −40…+60 °C, unheated house in winter is not a problem
- Weight 1.4–1.5 kg: mounts on any wall, including thin wooden partitions and wagon walls
- Installation 5–7 minutes: no plumber, no special tools required
- Stepped nozzle Ø24/32/40 mm: fits garden hose and outlets of Separett, Biolan, Kildwick, Trelino without adapters
- Standard: closed top, for installation without ventilation
- Standard Plus: top opening Ø70 mm for connection to existing ventilation of the dry toilet
- Manufactured in Estonia (EU), lifespan 7–10 years
What to do with collected urine
- Garden fertilizer: dilution 1:10 with water — feeding for tomatoes, cucumbers, zucchini, and pumpkins
- In compost: 6 parts urine to 1 part peat accelerates decomposition and retains nitrogen in the pile
- For disposal: canister is emptied into a cesspit or disposed of according to local rules
Frequently asked questions
Will the urinal freeze in winter in an unheated house?
The urinal itself — no: LLDPE remains elastic in the cold, operating range down to −40 °C. In winter, the hose is removed from the nozzle and the canister is emptied; an empty Pi-Pi winters calmly on the wall.
Is plumbing or electricity needed?
No. Pi-Pi operates completely without water and electricity — urine flows by gravity into a canister or storage tank.
Pi-Pi complements your dry toilet — it doesn't replace it
In an off-grid cabin, on a smallholding or in a summerhouse, a dry or separating toilet handles most of the job, but its liquid container needs emptying often. Pi-Pi is a separate wall urinal: men use it standing, and the liquid drains straight into a jerrycan or the existing vent. There's no water line to run, nothing to freeze in a pipe, and the dry toilet handles only solids.
- Separett, Biolan: fixed-install units for an off-grid cabin — the Standard bottom outlet to a holding tank, the Ø70 mm top inlet on Standard Plus into the existing vent
- Kildwick, Trelino: drain into a jerrycan or compost chamber, vent through Ø70 mm without an adapter
- Soakaway or compost: Pi-Pi connects via its stepped outlet to any gravity-fed run
Seamless connection: the stepped outlet Ø24/32/40 mm meets the run already there, and the Ø70 mm top inlet on Standard Plus meets the existing ventilation duct without an adapter.
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.