Re: Vaillant boiler pressure

m kinsler inscribed thus:

Can you pressurize the system with air while cold? I've used that
trick to find leaks in automotive cooling systems. I haven't seen
radiators used to heat a house since a few built back in the 1950s
but the systems are usually pretty simple

That's what I'd do. Figure out how to connect a tire valve into one
of the system's air vents. Then pressurize the whole thing with a
bicycle pump to maybe fifty psi and then go over every joint with
liquid soap and look for bubbles. If you can avoid using the
plumber's sealant stuff, it would probably be better just on general
principles.

It occurs to me that this is the sort of thing I ought to do
whenever I do an extensive plumbing job around here: insinuate a
Schrader tire valve into the water system somewhere and whenever I
think everything's going to be just swell, pressurize it to a good
hundred psi with the air compressor and see if it actually is.

M Kinsler

Actually, thinking about it, that is a good idea ! The system should
be able to withstand 50 - 100 psi without too much stress. The soap
water trick should work well.

--
Best Regards:
Baron.
.