let by test

[ryman1]

when carrying out a let by test, the pressure stays at 10mbar for the first min but after a short time pressure risses to 24mbar. is this a let by fail?

 

[Dan Robinson]

You don't know?

Why are you doing the test?

 

[sooey]

How can it stay at 10 mb for a minute then rise to 24 after a short time? That doesn't make sense.

 

[monoxide62]

How can it stay at 10 mb for a minute then rise to 24 after a short time? That doesn't make sense.

Sun suddenly came out beating down on that 30 metres 28mm tube fixed to end of terrace wall?

 

[bell824]

How can it stay at 10 mb for a minute then rise to 24 after a short time? That doesn't make sense.

Sun suddenly came out beating down on that 30 metres 28mm tube fixed to end of terrace wall?

By my experiance i would say this has to be a leak in your rubber hose!!

 

[namsag]

Not very experienced then are you

 

[ryman1]

i raised pressure to 10mbar for 1 min and less than .2 movement ocourd, then my phone rang and after 5mins or so i looked bk at manometer and it was up to 24mbar. i would say thats a fail but found no more info in corgi book???

 

[Dan Robinson]

ye gods...

 

[expertgasman]

i raised pressure to 10mbar for 1 min and less than .2 movement ocourd, then my phone rang and after 5mins or so i looked bk at manometer and it was up to 24mbar. i would say thats a fail but found no more info in corgi book???

did you repeat it the test? watching.

 

[namsag]

Windup no **** can be that stoopid

 

[ryman1]

i raised pressure to 10mbar for 1 min and less than .2 movement ocourd, then my phone rang and after 5mins or so i looked bk at manometer and it was up to 24mbar. i would say thats a fail but found no more info in corgi book???

did you repeat it the test? watching.

yes and pressure risses very slowly? but not fast enough to be over .2 after 1min? gas pipe is internall but close to hot and cold pipework?

 

[bell824]

Not very experienced then are you

ffs catch the line of the thread !! also any rgi in cc would catch this one

 

[monoxide62]

Not very experienced then are you

ffs catch the line of the thread !! also any rgi in cc would catch this one

He is a member in the CC.

 

[bell824]

couldn't have seen my post then!!

 

[Nige F]

i raised pressure to 10mbar for 1 min and less than .2 movement ocourd, then my phone rang

First rule of Registered Gas Installer - Turn the F*****G phone off while doing gas checks