On Sat, 05 May 2007 19:38:44 GMT, Lobster wrote:

Dave wrote:
John Rumm wrote:

If you want a confidence check that the thing resealed correctly, you
could spray some soapy water over it (bit of washing up liquid and
water). You would see bubbles if there is any leak.

The problem with doing it this way is that if the leak is big enough, it
will not blow a bubble that you can see. It will have blown the soapy
water away quicker than it can make a bubble.

The solution is to make a collar of bubbles around the joint by using a
small brush. If you can make a complete collar, then you might not have
a leak, but watch it carefully to see if there are any tiny bubbles
adding themselves to the original collar of bubbles.

I used this way of leak detection on oxygen lines and that gas is far
more dangerous than North Sea gas.

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?

David

Just to be a bit pedantic, you can't actually smell North Sea gas, as
natural gas is odourless! Practically you can smell it of course, because
they add a chemical smell specifically so that you'll notice leaks.

Steve W