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stopcock

A stopcock is a form of valve used to control the flow of a liquid or gas. The term is not precise and is applied to many different types of valve. The only consistent attribute is that the valve is designed to completely stop the flow when closed fully.

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  1. W

    External Home Stopcock

    HI, Closing the internal house Stopcock located under the sink eventually stops water flowing from the kitchen tap or washing machine hose when these are left open. However, if the tap/ hose is closed, with the stopcock still isolated and left for several minutes then there is another stream...
  2. C

    Removing and replacing stopcock

    Advice needed on replacing stopcock. I can’t tell what sort of pipe the mains is or how it’s been connected. The pipe appears to be metal and is almost twice the size as the main pipe work in the kitchen. The stopcock has what looks like a normal compression joint at the top to the copper piping...
    • Craig Mullins
    • Thread
    • removing replacing stopcock
    • Replies: 2
    • Forum: DIY Plumbing Forum
  3. B

    Help advice needed re external stopcock

    The outside stopcock has broken off and the indoor one has completely seized up, the local water company have advised they no longer maintain the outside stopcock, has anyone got any suggestions on how we can deal with this
  4. R

    Connecting new stopcock to steel pipe

    I've got to replace my leaking stopcock, it seems to be connected to old steel pipe about 25mm, I guess 3/4 inch. What is the correct way to connect to this pipe?The steel pipe comes up vertically then an elbow connector directly onto the old stopcock, however new stopcocks are compression...
  5. R

    Is this the stopcock?

    Just in the process of buying a 1995 house. Doing a 2nd look around the property to see what needs upgrading, thought I determin where the stopcock for incoming water was. I can only assume that what I managed to picture is the stopcock, it a bit difficult to obtain something better as the...
  6. S

    Noisy stopcock no leak!

    Hi I have a permanent gushing noise coming from the mains pipe to my stopcock, that continues even when the house stopcock is turned off. When it is off there is still a trickle of water that comes from an open tap. Could this be the noise what is causing the noise or could there be a leak on...
  7. B

    2nd stopcock in kitchen query

    Hi everyone, I figured out what the 2nd stopcock does in the kitchen wall. I ran the cold water tap in the kitchen and turned the stopcock on and off and what it did was control the water flow and even when fully turned off the water was still running albeit at a lesser rate than when fully...
  8. Robcrick88

    Can you get water hammer when stopcock is off?

    Been getting water hammer everytime neighbour turns off their taps. Very loud in our house and have asked neighbour who denies hearing anything. I tried turning off my stopcock and switching off boiler for a few hours and could still hear the banging when they use their taps. Is it possible to...
  9. B

    Stopcock no2 in kitchen turn off or keep on?

    Hi everyone, I have a query about two stopcocks in my kitchen. There is one under the sink which turns off the kitchen water, then I have a cold water feed gate valve in a cupboard near my bathroom which turns off the water in the bathroom. However in the side of my kitchen wall there are...
  10. S

    Black Inlet pipe stopcock

    Main water inlet pipe stopcock seized. Have tried freeing it to no avail so looking to replace it. It's very old as you can see on the attached pictures. I've bought a 25mm stopcock and have a 1" to 22mm reducer. I can't get the reducer to fit over the black pipe as pictured and I'm beginning to...
  11. S

    Noisy stopcock / mains water inlet pipe

    Hi there, Would really appreciate some help please. Had this problem for a few weeks now and it is quite annoying and owing to the loudness I'm surprised the neighbours haven't complained yet. I keep getting intermittent vibrating / buzzing noises on the mains water inlet pipe where water comes...
  12. M

    Stopcock valve leaks when closed but nothing when open

    Hi all, I have a query in relation to stopcock valves for the main cold water supply into the flat just before the water meter inside the flat. I noticed that when closed it’s dripping slightly at the stem, however, when I open it fully again it stops completely. I have checked this for a...
    • MisterX
    • Thread
    • america closed leaks nothing stopcock usa valve
    • Replies: 4
    • Forum: USA
  13. S

    stopcock no water flow

    Alright so we made a bit of a mess the other day. Pulled the washing machine out and the pipe snapped off the back of it and flooded the place. It was connected to the pipe on the right. It had a stopcock on it identical the the blue circled one, but turning it wouldn't shut the water off so it...
    • Steven07
    • Thread
    • america flow no water stopcock usa water
    • Replies: 2
    • Forum: USA
  14. P

    Main Internal stopcock Sheared

    Hi, Unfortunately I find myself in a bit of a predicament.. The house I live in is very old, 1917 so I presume that this pipework with the stopcock is lead. I shut off the main and the shaft sheared, I attempted to grind a slot into what remained to hopefully open the water supply for a short...
    • polydevs
    • Thread
    • america internal main stopcock usa
    • Replies: 5
    • Forum: USA
  15. A

    leaak of 1 litre/minute shows at meter with stopcock turned off

    Our meter is in the pathway approx 50 metres from a two and a half year old house. Water bill has risen sharply in last 6 months. (Almost doubled). Turned off stopcock in the house, checked meter, shows 1 litre per minute flow. Not sure where the pipe runs are (5 houses in the development). Who...
    • abriggsey
    • Thread
    • america meter shows stopcock turned usa
    • Replies: 2
    • Forum: USA
  16. N

    Main Meter Stopcock key- How to identify

    I need to lower down the water pressure and have identify the stopcock at main water meter. I am not sure which one i need to buy. I have attached the picture although its not quite clear. Any advise will be helpful. Thanks
    • newbie910
    • Thread
    • america identify main meter stopcock usa
    • Replies: 9
    • Forum: USA
  17. A

    Routing mains water pipe under the floor?!?

    Hi, I have my mains pipe coming into the side of my house which is copper. I am going to have the adjacent wall studded out (to the left in pic) and therefore want to hide the mains pipe behind it and put on a low profile stop tap in which can be accessible via a flap or something. There is an...
    • Angelheart1412
    • Thread
    • america copper floor mains pipe stopcock under usa water
    • Replies: 4
    • Forum: USA
  18. H

    Is this the stopcock?

    Hello We had a kitchen extension done 6 years ago and this was fitted under the sink which I always assumed was the stopcock. However as you can see it leads to a dead end and the water doesn’t stop when I turn it off. I can’t find anything else which looks like a stopcock so I’m very confused.
    • hardmanlee
    • Thread
    • america stopcock usa
    • Replies: 6
    • Forum: USA
  19. P

    I am trying to swap the stopcock as it just keeps turning when trying to turn off the water. There is a grey thing on top I'm not sure what it is?

    Hi, I am trying to swap the stopcock as it just keeps turning when trying to turn off the water. There is a grey thing on top I'm not sure what it is?
    • Pitz01
    • Thread
    • america grey keeps stopcock thing top trying turn off turning usa water
    • Replies: 12
    • Forum: USA
  20. O

    New stopcock on rising main

    Hi I have an old 1950s house, and the stopcock on the rising main is quite stiff and difficult to access. I'd like to add a new stopcock in a more accessible position, but leave the old stopcock in place so that that I don't have to turn off the water at the property boundary. Is there any...
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