Waterless urinal for off-grid cabins, smallholdings and summerhouses
Wall-mounted waterless urinal for off-grid cabins, smallholdings, summerhouses, shepherd's huts and tiny homes. It fixes to any wall with two screws, and the liquid drains separately into a jerrycan or connects to a dry toilet. No plumbing, no sewage connection.
Why an off-grid cabin needs a separate urinal
A remote cabin has no mains water and no drains, and in winter any pipe carrying water risks freezing. A dry or separating toilet (Separett, Biolan, Kildwick, Trelino) deals well with solids, but its liquid container fills quickly and needs frequent emptying — especially when several people live or stay there.
Pi-Pi solves one specific part of the job: separate collection of urine, by men standing, against the wall, with no water. Your dry toilet's container fills two to three times slower, and there's far less servicing to do.
Technical facts
- LLDPE material: won't crack at −30 °C; operating range −30 to +60 °C, an unheated cabin in winter is no problem
- Weight 1.4–1.5 kg: two screws onto any wall, including thin timber partitions and hut walls
- Installation 15–30 minutes: no plumber, no special tools
- Stepped outlet Ø24/32/40 mm: fits a garden hose and Separett, Biolan, Kildwick and Trelino outlets without an adapter
- Standard: closed top, for fitting without ventilation
- Standard Plus: Ø70 mm top inlet to tie into the dry toilet's existing ventilation
- Manufactured in Estonia (EU), service life 7–10 years
What to do with the collected liquid
- Fertiliser for the garden: diluted 1:10 with water it feeds tomatoes, cucumbers, courgettes and squash
- In compost: 6 parts urine to 1 part peat speeds decomposition and holds nitrogen in the heap
- For disposal: the jerrycan empties into a soakaway or is disposed of under local rules
Frequently asked questions
Will the urinal freeze in winter in an unheated cabin?
The urinal itself won't: LLDPE stays flexible in the cold, with an operating range down to −30 °C. For winter you take the hose off the outlet and empty the jerrycan; an empty Pi-Pi sits out the winter on the wall.
Do I need water or electricity?
No. Pi-Pi works entirely without water and without electricity — the liquid drains by gravity into a jerrycan or holding 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.
Urinals for off-grid cabins
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.