pressure vessel test

[panny300]

what can be used to test the pressure on the expansion vessel in a combi boiler.

 

[Rob]

foot pump with a guage. Or any guage attached to similar valve.

system pressure needs to be zero for correct reading.

 

[gas4you]

I use a digital tyre pressure gauge.

 

[panny300]

thank for the replys,are the gauges mentioned accurate at such low pressure?
what is the easiest way to get the system pressure to zero?

 

[ChrisR]

The gauges on pumps aren't too good low dow, but the pressure isn't critical. Say 10 - 15psi.

Open a drain cock