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Gas isolation valve leak

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14 Aug 2018
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United Kingdom
This leads to the gas hob. Slight eggy smell from it accumating in cutlery draws. Registers one additional cube on my H61 gas tester. Uses 0.01 or 0.02 kwh gas overnight when no appliances are on. Years ago my plumber put a new isolation valve in the cellar because she couldn't find this one when fitting the new hob. Question is can I stop the leak by tightening the nut or should I just leave it alone. Could get the plumber back I know but trying to be frugal.
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It’s a potential smell of gas and needs to be dealt with accordingly, please call 0800111999 or your emergency contact if LPG immediately and express your concerns. You could be putting yourself and others at risk. You can’t tighten the “nut” and diy gas work should be discouraged.
 
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I appreciate your concerns. When the draw is open the smell goes very quickly. It's been like this for years. When I had my smart meters fitted a few years ago the engineer said the drop was permissable but close to the limit so I should get it looked at. The hob was leaking so replaced it. The new hob reduced the drop to a tiny level which the gas engineer said was fine. I only found that tap recently and had a sniff and thought that's it. I don't think it's going to explode any time soon. Apparently you need 50,000ppm for an explosion. My meter reads from 50 to 1000ppm and it registered the lowest concentration it can. After airing the draws it registered nothing and nothing in the kitchen.
 
Why would I get my gas supply capped when I can just get my gas safe engineer to pop over and remove the valve. Its been this way for 10 years and nothing bad happened.
 
Also, if I close the newer isolation valve the leak is completely eliminated.
 
When the draw is open the smell goes very quickly. It's been like this for years.
This doesn’t make it ok
I don't think it's going to explode any time soon.
I wonder if people who have been involved in one thought the same?
Apparently you need 50,000ppm for an explosion. My meter reads from 50 to 1000ppm and it registered the lowest concentration it can.
Doesn’t mean to say it can’t get worse.
Why would I get my gas supply capped when I can just get my gas safe engineer to pop over and remove the valve. Its been this way for 10 years and nothing bad happened.
Ok, then do this asap.
 

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