Lobster wrote:

But you can smell North Sea gas, unlike oxygen: so if the leak is big to
blow away the bubble solution wouldn't it be pretty obvious?

You would have thought so. As I said though, the best test is to do a
pressure drop test. However unless you have done one before to prove the
existing pipework in the house is sound you can end up chasing a problem
at your cooker fittings that in reality is elsewhere!

--
Cheers,

John.

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