Air In Pipes

Usually, if there is no water flowing out of the tap in your home, it is usually due to air being present in the plumbing pipework. In order to fix this, you can fit a length of rubber hose to the affected tap and connect the other end to a working direct feed tap. This will normally be the cold tap at the sink.

Method:
Open up both taps simultaneously to let the pressure of the mains water to force the air back out of the pipework. Let them run for several minutes and then turn off, closing the air locked tap first. Harefield Plumbers will do this. It may take a few repetitions for this to release the lock and allow water to run properly. When finished, undo the hose from the higher of the two taps, before releasing the lower and allowing the water in the hose to drain into the sink

More Than One Tap:
If more than one tap seems to have an airlock, it should be cleared starting with the lowest one. It may be possible to blow the air out of the pipes. Push a length of hose in the outlet pipework within the loft cylinder. Open up the tap at the other end and blow through the pipe to try and dislodge the air. A Harefield Plumber can carry out this work fully guaranteed.

Draining Down An Air Lock:
A final method would be to drain the system. Isolate the water feed and open all the taps to drain away all the water. Close all taps until they are about a three quarters closed. Turn the water supply back on. Adjust them all until a light, even flow of water is achieved. Now go round opening them one by one to the half-open position, starting with the lowest and working upwards. Repeat at the three quarters open position. Once all air has been discharged, turn all taps off to a point where there is only a minimal flow.