Plastic pipe is widely available, is convenient to use, and is gaining acceptance by local regulatory authorities. However, it would be wise to be sure of local approval before any plastic piping is used in your installation. Pipe and fittings bearing the mark of the National Sanitation Foundation (NSF) should be used, since this assures you of physical and chemical quality. IF PLASTIC PIPE IS USED IN AN INSTALLATION, A GROUND STRAP AROUND THE PLASTIC SECTION OF THE WATER LINE IS ESSENIAL TO AVOID BREAKING ANY EXISTING ELECTRONIC GROUNDING.

There are several types of plastic piping commonly used. Flexible plastic pipe is connected to fittings with screw-type clamps (often called hose clamps), or with compression-type fittings. Rigid plastic pipe is solvent cemented to fittings. Threaded plastic fittings may also be used to join plastic pipe to galvanized piping or copper tube.

When solvent cementing rigid plastic pipe, these steps should be followed: