Does Pi-Pi work with my Trelino, BOXIO or Kildwick toilet?
Connection is possible if your system has a separate outlet or liquid container: the stepped outlet Ø24/32/40 mm goes into it via a hose, and the upper port Ø70 mm on Standard Plus and Standard Corner connects to ventilation. The Pi-Pi urinal is placed next to the toilet and does not replace it.
General compatibility rule
Compatibility depends on your system’s design, not just the brand. Before purchasing, check three things:
- whether the toilet has an outlet or separate container for the liquid fraction;
- the diameter of the outlet or hose you plan to use: the Pi-Pi outlet is stepped, 24, 32, and 40 mm;
- whether ventilation is needed and the diameter of your toilet’s ventilation channel: the port on Standard Plus and Standard Corner is Ø70 mm.
How to connect to a liquid container
- Hang the urinal on the wall: installation takes 5–7 minutes, fasteners are selected according to the base.
- Select the outlet step whose diameter fits your hose or pipe.
- Attach the hose and lead it into a canister, compost reservoir, or your toilet’s liquid container.
- Lay the hose without sags to prevent liquid stagnation.
The outlet also connects to a standard PVC pipe. More about steps and hoses – in the question what is the drainage outlet connection for the Pi-Pi urinal.
Ventilation connection
The Ø70 mm port is on Standard Plus and Standard Corner: it connects to the ventilation channel. Before purchasing, check the diameter of your toilet’s channel. On Standard the top is closed, ventilation is not needed for it.
Which systems are listed on the model pages
The urinal is placed next to dry and composting toilets Trelino, BOXIO, Kildwick, and Separett. Compatibility is indicated on the model pages for Separett, Biolan, and Green Toilet, as well as for other systems that accept liquid fraction through a standard drainage connection. Brand names are trademarks of their owners; Pi-Pi is a separate product.
If you have doubts
Check the sizes and type of connection on the model page. If your system is not listed, clarify if the outlet will fit your toilet. Business clients can check the outlet and sizes in hand before purchase: a sample is ordered on the samples page. Why a urinal is needed next to such a toilet is covered in the question why a urinal if there is a composting or separating toilet.
Suitable Models
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.
Pi-Pi Standard Plus
Top port Ø70 mm connects directly to the standard ventilation of a composting toilet – for a closed cottage, allotment, or campervan where ventilation is needed.
Pi-Pi Standard Corner
Corner shape plus top port Ø70 mm for ventilation – standing urinal even in the tightest cottage.
Pi-Pi Outdoor Sink
Durable plastic sink for allotments, garages, and workshops – impact-resistant and frost-proof. Comes with a soap shelf.
Pi-Pi Outdoor Corner Sink
The same durable plastic sink, but for corners – to save space in tight workshops or cabins.
Related Questions
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.