Blanking Cap For Water Pipe

[Booldawg]

I've recently uninstalled a dishwasher (cold feed only). This has given me a water pipe that obviously has a on/off switch with a threaded end.

There is a slight drip from the now exposed threaded end.

Is there a water-tight blanking cap available that screws onto the end of the pipe to stop the leak?

[carrust]

You'll be able to get a stop end from a plumbers merchants along with some PTFE tape for the thread

[tonyav]

There are various types, Booldawg. Has rusty says don't forget to use a bit of PTFE tape on the threads though.
http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2051541.m570.l1313.TR0.TRC0.H0.Xwater+pipe+end+stop&_nkw=water+pipe+end+stop&;_sacat=0

[SlackAlice]

Assuming you have 15mm copper pipe as the feed, this is what you need.

http://www.screwfix.com/p/stop-end-15mm-pack-of-2/65021

If it were me, I would remove the old fitting and then fit the blank cap to the end of the pipe.

[buildersmate]

The normal size is a 3/4 inch BSP brass blanking cap with fibre washer. It certainly isn't the contraption suggested immediately above, which is for an unthreaded copper pipe.

[Old_Geezer]

From your description it seems like they simply fitted a valve to the end and it's not perfectly closed. Ensure it is turned enough. Aside from that, they come in standard sizes. Have a measure of it, then pop into your local DIY shed for a suitable end stop as folk have suggested.

[Old_Geezer]

This is why an edit facility would be nice. End stop / blanking cap / whatever. Have a look and use your judgement on what will fit the valve.

[dekkypoo]

Agree with O G it sounds like the on/off bit won't turn off properly you'll need to take it off and fit a compression blanking cap.

[Booldawg]

thanks all. I've ordered a 3/4 brass threaded end cap. Sure I have some PTFE tape somewhere!

[Dodger666]

I have two of these blocked off feeds, one to a removed dishwasher and the hot water supply to a new washing machine, cold feed only. I removed the plastic end on the water pipe and cut a piece of stiff plastic to fit in the cap. Using the original rubber washer as a seal I screwed it on the valve to blank off the end.

Having said that my valves didn't leak in the first place.