Leaking double check valve - help!

[mullinsse]

I'm hoping someone might be able to help.

The double check valve under my kitchen sink is leaking. I originally thought it was the bottom join which connects to the pipe that was leaking but it is the middle (which doesn't have a screw marking on it) - which I believe is the valve itself...

Not sure if I have described that correctly but I'm wondering if I will just need to get it replaced or is there anything I can do to fix it myself?

Any help would be very much appreciated!
Thanks very much...

 

[adlplumbing]

it needs replacing

 

[Charnwood]

In the middle of most double check valves is a test point.
If yours has one, has the screw come loose?

Untitled

• Charnwood
• 2 Jul 2011
• 1

 

[mullinsse]

Thank you so much for the responses.

The test point on mine is where the leak is coming from. It doesn't have a screw marking on it, it is exactly the same as the picture you have posted.

 

[Charnwood]

screw marking

 

[mullinsse]

Sorry, what I meant was that the "test point" which you have circled on the photo isn't a screw. I've tried turning it but it it doesn't screw in or out...

The surface of the test point is flat so I had to use a small pair of pliers to try and tighten it rather than being able to use a screw driver. Not sure if that makes a difference...

 

[Agile]

A photo saves a thousand words!

 

[mullinsse]

View media item 35412
Sorry...new to this! So the test point in the middle is where the leak is coming from. Hope this helps...

 

[Agile]

Well that is a hex nut and with enough anti clock torque applies it should undo.

They should have a thin fibre washer for sealing but a bit of PTFE tape will also do the job.

Only a couple of pounds to replace with new!

 

[mullinsse]

Ok, thanks so much for the advice...