Compression fittings for waste pipes (plastic).The fittings for this system work as the name suggests. Rubber rings are compressed between the fitting and the pipe in such a way as to produce a watertight seal. Many standard plumbing items are now compression since they allow for pipework to be dismantled and reassembled. This makes it easy for blockages to be cleared. The general arrangement is a fitting trap or bend, with a large plastic nut at both ends, and a rubber ring or washer for each end. Fittings such as these are carried by professionals such as Charlton Plumbers who can fit them fully guaranteed.Cutting a waste pipe (plastic).Each fitting slides over the waste pipe up to a particular point. When cutting, be sure to allow for this extra amount to ensure a watertight connection. The pipe should be cut to length and burring should be cleaned off with a small file so that the end is smooth. This is very important with the inner edge, since the waste water flowing through may well contain debris which will quickly build up to form a blockage around any rough surface.Connecting the joint.Put the larger nut over the pipe and then the rubberised ring or washer. If this has a taper shape, make sure the taper is placed against the fitting side. Finally, insert the pipe into the fitting and tighten the nut. These fittings are designed to be hand-tightened only. Do not use spanners or pipe grips. The rubber washer is relatively soft and can be perfectly adequately compressed with hand tightening. If the joint leaks, it is usually because one or the other component is out of line or misplaced, rather than the washer not being compressed enough and can be diagnosed and rectified professionally by a Charlton Plumber.
Waste pipe Joints (compression)