Basin/Bidet Waste with PUM

The Purus Basin/Bidet Waterless Waste with revolutionary PUM – Purus Universal Membrane – technology is a new low-level membrane which saves space without reducing the flow capacity, by replacing current S-traps and P-traps.

It is suitable for basins and bidets with either 1¼" or 1½" wastes.

It also functions as an air admittance valve when there is a negative pressure in the drainage system (secondary air ventilation), which gives much better flow in the drainage pipe. The new technique stops bad air coming up through the drainage system.