Gas testing question

[Masood]

Personally, rather than test the whole installation as new when adding to it I always test twice. Once before you do anything at all, then once you have completed the work. Otherwise you end up taking on other peoples problems, and the customers always say ' it was ok before you touched it' and your thinking ' how the heck would you know love, and get the kettle on!

Ditto. Always test before you do any work so you know what you started with.

 

[cannon]

Hi digital is more quicker to use but it is a extreamly precise (acurate) ,very good for setting working gas on boilers ect especially when you need to have a differential pressure taken.With a water gauge you have the maniscus which is the slight "u" shape dip in the water where you read of any drop the miniscus is debatable thats why water gauges are less forgiving and why transco and national grid use them.Remember if you do purchase a digital gauge it requires calibrating every 12 months ,also do as sambotc has tweeted test before you do any work if you have a drop explain to customer detailing you charges for trace and repair, job finished gauge back on even if its a friday evening pub night no leaks happy days away you go.

 

[Billy Bob Bob]

Im with tamz on this, get yourself a manometer mate.

me as well
+2

 

[cannon]

Yes you are right ,I suggested it may be prudent to treat the whole installation as a new install you dont have to but if I had a very small volume of pipe work in situation with all appliances isolated and a 1mb leak I would like to know were gas is going

 

[tamz]

If you have all appliances isolated and a 1mb leak you better hope you have a disc in your pocket or you may be there a while :smile:

 

[fogarty]

Some time ago i was fitting a downstairs cloakroom for my nephew and he'd organised a boiler service for the same day. He had a digital manometer and told my nephew there was a large leak on the pipework to the boiler and would need all new pipework. When I asked to have a look at the manometer reading ,suddenly there was no leak and he said "Thats funny theres no leak now, must have been faulty reading"

 

[Nostrum]

Used a digital for 5+ years never had it 'calibrated' just check it against a water gauge every now and then (more then than now!)

Never had an issue with it and it's only a center brand one. Can do differentials and has a timer on it, plus a back light which is handy.

Would never go back to a water gauge now personally. Only 1 thing that I found a bit of a dis advantage was in the winter when the vans cold in the morning it sometimes needs warming up before it switches on!

Each to there own though, as long as you can use the tool you choose, who cares!

 

[tamz]

Only 1 thing that I found a bit of a dis advantage was in the winter when the vans cold in the morning it sometimes needs warming up before it switches on!

A u guage suffers the same in the winter. Always sit it on the dash when you jump in the van to give it time to thaw out unless you still have a glass one.

 

[Mike Jackson]

Used a digital for 5+ years never had it 'calibrated' just check it against a water gauge every now and then (more then than now!)

Never had an issue with it and it's only a center brand one. Can do differentials and has a timer on it, plus a back light which is handy.

Would never go back to a water gauge now personally. Only 1 thing that I found a bit of a dis advantage was in the winter when the vans cold in the morning it sometimes needs warming up before it switches on!

Each to there own though, as long as you can use the tool you choose, who cares!

Digital manometers MUST be recalibrated annually to use for tightness testing. Have a read of IGEM UPE 1B 3.

 

[SafeGasInstall]

[DLMURL="http://www.reginproducts.co.uk/flowandpressure/REGU35"]REGU35 - 'Premier 45' Manometer | Regin[/DLMURL]

 

[Mike Jackson]

Also no longer permissible for tightness testing according to IGEM UP 1B 3. The calibration one I can understand but that is ridiculous as far as I'm concerned.

 

[kay-jay]

If you have all appliances isolated and a 1mb leak you better hope you have a disc in your pocket or you may be there a while :smile:

I agree. Why would anyone isolate appliances if a drop was in permissible limits? If you proved a drool was on piepwork you would need to sort it! Inspect every joint which may mean ripping out sections of building fabric. Can you really expect a customer to find an extra few hundred quid when drop is permitted and they only rang you up to service the fire?

Sent from my GT-I9100 using Tapatalk 2

 

[Nostrum]

Digital manometers MUST be recalibrated annually to use for tightness testing. Have a read of IGEM UPE 1B 3.

I calibrate it myself against a water gauge, no way i'm paying £40-50 to get a £90 manometer calibrated yearly when all they'll do i something similar.

 

[kirkgas]

A u guage suffers the same in the winter. Always sit it on the dash when you jump in the van to give it time to thaw out unless you still have a glass one.

i used to put a few drops of windscreen wash in the u guage in the winter to keep it defrosted, also made it easier to see