Is it air or hydrogen, when bleeding a rad?

[learnplum]

Hi all, how do you test for hydrogen, when bleeding rads?
If I know the gas coming out of the rad is hydrogen for arguements sake when I bleed it, then I know internal corrosion, is taken place.
So I can eliminate, air being sucked in.
Thanks:tounge_smile:

 

[Gray0689]

Put a flame to it

 

[PhoenixServices]

As above. And if corrosion is taking place, air is being sucked in.

 

[learnplum]

Thanks grey, will it be a bang or large reaction etc?:tounge_smile:

 

[dancinplumba]

Kaboom

 

[learnplum]

Hi phoenix, so corrosion takes place, only if air is being sucked in ?
Thanks.

 

[learnplum]

MR, Dancin, yes I know you now, IM ASKIN?
Are we talkin stand back, with that naked flame?:tounge_smile:

 

[Gray0689]

Small jet lol

 

[learnplum]

OK grey thanks.
Any mild methods?:tounge_smile:

 

[PhoenixServices]

Get the customer to do it.

 

[learnplum]

Lol that tickled me.
Any test for that hydrogen ?
Without loosin my arm?:tounge_smile:

 

[thompsonbrown]

If it is hydrogen. Turn off at gas meter and re-pipe system. Ha Ha

 

[Jimmy73]

Grab yourself a T3 meter and that will tell you mate.

 

[Mike Jackson]

I hold a cup, upside down over the vent when I bleed. Shut the vent and insert a lighted match into the cup. If it goes pop it's hydrogen.

 

[learnplum]

OK, thanks, I think I get it.
But a special ta, to those sensible replies.:tounge_smile:

 

[SimonG]

Let it fill a balloon and see if it floats!

 

[learnplum]

IS this comedy at the palladium, by any chance?
Or a plumin forum?
I may be on the wrong channel? lol?:tounge_smile:

 

[Gray0689]

Makes you think but
And thinking about plumbing is learning

 

[learnplum]

Grey cause I appreciate, you guys, thats why I post a lot.
A lot of you gave me zilch, except a joke?:tounge_smile:

 

[kris]

I've never had or done it but this guy did, wowser


http://www.youtube.com/watch?v=zMjYnTGV9ks

 

[Plumbers Elbow]

Hi phoenix, so corrosion takes place, only if air is being sucked in ?
Thanks.

No corrosion could take place with no suction, best advice is you can smell it.

 

[SimonG]

Hydrogen has no smell. Now hydrogen sulphide is a different proposition.

 

[AlexGas]

... If I know the gas coming out of the rad is hydrogen for arguements sake when I bleed it, then I know internal corrosion, is taken place.

There will always be a corrosion process (small or large) taking place inside a central heating system.

 

[Plumbers Elbow]

Hydrogen has no smell. Now hydrogen sulphide is a different proposition.

Im no chemist but something in that corrosion smells, no idea what it is though.
Just like you can smell a treated system (or is that just me)