How to Fix a Leaking Copper Pipe Connector

A leaking pipe connector is something that needs to be sorted quickly, as even a slow leak in a pipe can cause damp, staining and other forms of damage to the surrounding area. There are different methods for fixing different types of connectors, and the most effective solution will depend on the nature of the problem.

Isolate the Water and Dry the Pipe

Turn off the main stopcock and open up another tap to release the water pressure. Dry the pipe work and connector thoroughly with a cloth as any moisture left on the surface will prevent the resoldering of leaks.

Work Out Why It Is Leaking

Determine the cause of the leak in the copper pipe connector. Typically, the leak is caused by a number of reasons such as a loose compression nut, a cracked or displaced olive (the small brass ring located inside a compression fitting), or a failure of the solder joint.

Fixing a Compression Connector

As mentioned previously, the nut must be tightened a quarter turn at a time and checked for leaks after each turn of the spanner to avoid the olive being crushed. If the leak persists after tightening the nut then it is likely that the olive has been deformed during fitting. Turn off the water supply, loosen the nut and remove the old olive from the pipe. For Copper Pipe Connectors, visit watkinspowis.co.uk/products/copper-pipe-fittings-and-press-systems.

Fixing a Failed Solder Joint

Drain the pipe fully before attempting to re-solder. Remove as much of the old solder as possible using wire wool or emery cloth. Apply flux to the cleaned joint, heat the connector until the solder starts to melt, then allow the solder to flow to form a bright ring. In some cases it may be more suitable to remove the joint altogether and replace it with a suitable compression connector.

When to Replace the Whole Connector

Even the best repair will deteriorate over time. If the connector body is cracked, heavily corroded or has been previously re-soldered then it is time to replace it. Also make sure you know what plumbing and gas work you can do as a DIYer. Some work near gas pipes will require a qualified professional.

A properly done repair will last as long as the original fitting.