Brilliant. We Gas Service Engineers love it when punters do that. Surpassed only by those who tell us how long it should take.
Huge gas pressure drop between meter and boiler. Help!
- Thread starter davecon70
- Start date
Brilliant. We Gas Service Engineers love it when punters do that. Surpassed only by those who tell us how long it should take.
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Sorry, no simpathy with anyone who chucks parts at a problem, until the problem goes away.
From where did you get the impression that I did?
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4 options- either the supply pipe is undersized and always has been, there's an extra appliance been fitted to the line, an obstruction has developed in the line or there's a leak.
Did plumber do a static test? (isolate all appliances, test pressure at meter, isolate supply, test 5 minutes later)- that would tell you if there's a leak in the pipe.
And as someone else, can you report on the size of the supply pipe, the leg lengths and what bends there are (and whether the bends are elbows or wide radius)?
Did plumber do a static test? (isolate all appliances, test pressure at meter, isolate supply, test 5 minutes later)- that would tell you if there's a leak in the pipe.
And as someone else, can you report on the size of the supply pipe, the leg lengths and what bends there are (and whether the bends are elbows or wide radius)?
I didn't, you did that all by yourself..
You are an idiot
I think one can assume that you are not a gas service engineer?
My guess is the pressure drop wasn't measured correctly the previous time (ie under flow conditions) and it hasn't changed. In that case, and since the boiler works normally, the OP doesn't have a problem.
Does one need to be to make a perfectly sensible post as he made above. What do you think, in your personal opinion, was wrong with what he suggested?
Correct, and never professed to be. As @Harry Bloomfield , every days a school day, what did I get wrong?
Pretty much everything, to be honest.
If the installer did it wrongly one year ago, then he needs to be pulled up.
At the moment tge meter pressure appears to be 20mb - what happens if it falls to, say, 17mb?
Everything is not a specific answer. Try to be specific please...
It was installed 2 years ago, and recently serviced by the plumber that installed it. We don't know who serviced it last year, when the 20mb at meter and boiler were obtained, but it's a fair bet it was the same guy. If the installer failed to meet the 1mb drop reg perhaps he should be pulled up, but unless Gas Safe or somebody hears about it, I don't suppose anything much will happen.
Treating it as a "come across" job, where excessive pressure drop is only NCS, presumably it's OK.
As I understand it, pressure after the meter should be 21+/-2mb, so 17mb would be non-compliant and the gas supplier should rectify it. But if it did fall to 17mb, with pipe drop 20-13.5 = 6.5mb, so something like 11mb at the boiler, the boiler output would be down (unless it has a low-pressure cutout, I wouldn't know)
I don't think he was suggesting one dies that with gas, he was talking about cars.
Though to be honest my experience with both suggests I'm better off doing both myself.
Although as luck would have it I have since found a very good gse that is able to think for himself and fix issues without just chucking parts at it, which is a rare occurrence.
Still trying to find a decent mechanic that hasn't retired...
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