Discuss Mains Stopcock has been replace by my builder, is that right? in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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Holly2011

Hi,
I wonder if someone could give me some advice please? I have been having some work done in my house. My builder told me because of a slow leak in the main water pipe to my property he had to replace the old lead pipe,which he did. The stopcock to the water mains was under the front door in a hatch under the mat.

However, on doing my mid inspection I found that the builder had relocated the water mains stopcock into the electrical and gas cupboard under the stairs, which I am fine with if it is ok to re-locate it here? if anyone can tell me if this conforms to building regs i would be grateful.

My 2nd main concern was that he showed me that he had replaced the stopcock with some kind or lever which I was concerned with as I have never seen such a thing. I was concerned that If somone moved a chair in the cupboard they could accidently switch off the water. This lever thing also to me looked a bit weak, althoguh it did look easy to turn off or on. My main worry was that as the water coming into the house will be under mains pressure especially with the leak in the old piping eradicated I was anxious to know if this lever thing can burst, seize up or ever stop me from turning off the water if I am in a situation where I need to turn it off.

Is it best to stick with this new lever thing or go back to my old stopcock. If I need to get a new stopcock can anyone reccomend a reliable brand??

You answers are fully appreciated,

Thanks Holly:rolleyes:
 
I personally prefer the use of stopcocks but would like to add as safegasinstall says there is no problem using a lever valve.

My reason for prefering stopcocks is they are designed to give backflow prevention, as is the one the one in the street, its a belt and braces thing the more you have the better the protection.
 
its very common to see lever valves used. i personally fit them for elderly people who may struggle with the crutch head type in an emergency situation.
 
i have fitted quite a few of the lever type for the older generation in my area as they are easier to use as kay-jay said.
 
On the incoming supply should be a stopcock installed. Also why has he brought a cold main supply in an electric cupboard? I would say that is bad practise to run a cold main next to an electrical fuse board?
 
there r regs about how close they can be to each other
im sure you must have the correct stopcock or stop valve with a drain off, you can then add a lever type after for quick shut off. a lever valve is basically a ball o fix with a lever on it! not desingned for the same pressures, unless there are specific ones made. i hope you can correct me if im wrong as it will update my own knowledge
 
yes like unguided1 states about the backflow prevention on a stopcock im sure it is in the water reg's guide
 
The full-bore lever valve offers no resistance to the incoming supply, if opened fully- whereas the previous screwdown stopcock did by way of its construction which forced the water over a built in ridge.

Its installation is a bit like birth control, really. Get turned on and always put on your protection before you get drained down.
 
Personally I know that full bore lever valves have no back-flow protection, but as has already been said, water meters have backflow protection. As should showers and garden taps. I'm not convinced that stopcocks offer fantastic back-flow protection either. What I do know is I've been to countless jobs where I've had to repair leaking stopcocks. Never been to a job where I've had to repair a leaking lever valve yet.

If I'm ever replacing a stopcock then I always replace them with a lever valve. The only real downside I can see with these is you have to turn them off slowly, especially on a high pressure mains. Otherwise you can get fairly severe water hammer if the water is flowing when you turn it off.

Most lever ball valves are rated up to 10 bars, some are rated to 25 bars. As lead-free solder joints start to give up the ghost at about 10 bars I wouldn't worry too much about the ball valve failing on you!
 
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