John Guest Stop Tap - 20mm

This John Guest stop tap is specifically designed to fit 20mm MDPE (Medium Density Polyethylene) pipes.

Yes, this stop tap is suitable for potable water supply installations.

Installation involves cutting the 20mm MDPE pipe squarely, inserting it into the tap body, and tightening the compression nut. Always turn off the main water supply before installation and check for leaks afterward.

The main benefit is the ability to quickly and easily isolate water flow to a specific section of pipe, which is essential for maintenance, repairs, or emergencies.

You will need a pipe cutter for a clean pipe end and a wrench to tighten the compression nut. Ensure the pipe is clean and free of burrs.

First, turn off the water supply. Check the pipe insertion and re-tighten the compression nut. If the leak continues, the pipe end or the fitting might be damaged and may need replacement.

While durable, it's best to check the specific product's environmental rating. Protect from extreme weather or UV exposure if used outdoors for extended periods.

Turn off the water supply. Check that the 20mm MDPE pipe is fully inserted and free of damage. Re-tighten the compression nut. If the leak persists, the pipe end may be deformed, or the fitting may be damaged; consider replacing the pipe end or the tap.

Ensure there are no internal obstructions within the pipe leading to the tap. Check if the tap valve mechanism is fully open. If the tap is old, the internal valve seat may be damaged, requiring replacement.

Ensure the handle is aligned correctly with the valve stem. If stiff, the valve may require servicing or replacement, especially if it has been in place for a long time or subjected to hard water.