McAlpine Tundish with Self-Closing Valve Size:15/22mm x 1 1/4" It is mounted into the

It is mounted into the wall similar to how a light switch may be mounted

suggesting blockage

RETIFLEX pipes are produced from high density polyethylene (PE-Xb) and are cross linked by SILANE method (also called the "moisture cure" method) in which the molecules of polyethylene are bonded to form more complex structure

The Prisma bottle trap is designed to be installed with sinks and basins where the waste fittings are exposed

When installed into a waste or soil pipe

McAlpine Tundish with Self-Closing Valve Size:15/22mm x 1 1/4" It is mounted into theDESCRIPTION: This tundish incorporates a self closing membrane that allows discharge to flow freely and then closes to form a seal. The membrane seal creates no resistance, ensuring smooth discharge flow from the PRV TRV, and is spring free, so not affected in hard water areas. When installed into a waste or soil pipe, it prevents foul odour or sewer gas from entering the building. SPECIFICATIONS: 15 22mm Inlet x 1 1 4" Outlet Temperature Rating 100C