Gas Leak

f888fhw

I have been in my new home for one year, The reminder came thru from the builder to have the boiler serviced to maintain the waranty. After the service the engineer pointed out that I had a 1.1 mbar pressure drop in the supply pipe to the boiler.

I contacted the builder and told them the issue, they came out and investigated the problem (removed sections of ceiling and wall) and inspected the supply pipe. They found a section of pipe in the wall that had a screw going fully through the pipe. This had been done during the building stage.

Do I have any valid claim for the builder to provide payment for the loss of gas during the year that the gas has been leaking into my cavity wall. Or is that pressure drop going to give a very small volume over the time it has been leaking?

JJ_Egan

Can you prove exactly how much this loss is and the exact dates .

f888fhw

1.1 mbar pressure drop over 12 months. I don't know how to work the pressure drop into a volume lost.

McKneff

There cant have been much of a leak, the screw itself would have been mostly plugging the leak

C_Mababejive

The tightness test would have been carried out at a pressure of 20mb or thereabouts. I doubt a 1mb pressure loss even over 12 months would equal a significant amount. It would be possible to roughly calculate the volume lost and this formula might be a good start..
http://www.maceas.com/en/pdfs/leak-rate_calculation.pdf

lstar337

I would have thought a claim about the house being in a dangerous condition might be more fruitful, or at least the threat of it may get you some compensation from the builder.

Scary to think about what could have happened.