Viva Universal 40Mm Waterless Self Sealing Waste Valve Trap Bath Kitchen 1" Bsp

Well made it fitted the 40mm which was a good fit on our solvent weld 1.5 inch waste outlet . No smells from waste and good flow

Worked perfectly, easy to install

Much cheaper than osma and it includes an elbow at no extra cost, which is just as well as my osma elbow did not fit it, just a few mm out. Took away all smells from the handwash sink in a commercial kitchen. There was insufficient space for a normal u bend trap and this is good value for money.

This is a good product. However it could have been excellent if in the instruction they informed you that before installation make sure the membrane (non return valve) is straight inside the unit. Mine was folded as a consequence I had to drain the bath (as it was not draining) and I poked a blunt tool through the membrane to open it, then I re installed it.I will buy again, good product but 1 star deducted for the hassle with the re assembly.

Compactness of unit

fitted this unit a good metre away from shower drain this product i am sure will work well but you need to make sure the waste pipe level drop is correct unfortunately with mine the fall was not great enough so the water backed up the pipe i could not get the flow better .

Used on the waste of a washing machine where thete wasnt room to fit a conventional trap.

So easy to fit, smell from drain completely gone, great product.