The flexible urine hose that comes with the Villa and Weekend is 2 metres long. Although you can purchase extra lengths and join them, there is a risk of sagging so we recommend using rigid pipe in its place. Always make sure there is a drop of 1cm per metre to ensure adequate flow and to help prevent blockages. Where a significant portion of the urine pipe is outside, and you want to use the toilet through winter, we suggest using 40mm or 50 mm rigid pipe to the soak-away pit or drain.
For rigid pipe, products such as PolyPipe are readily available in 32mm, 40mm and 50mm diameters from DIY stores and plumbing shops. You can choose from push-fit, compression or solvent weld depending on your installation.