Cleaning Gas Line after Soldering and Isolator

[whippetwhippet]

Hi

Can anyone tell me if in general you guys clean the gas line from meter to boiler after fitting. It's not connected at either end yet so this is a chance to water flush it to remove left over flux etc and let it drain and dry but wondered if this is overkill?

Also regarding gas isolators, there is an isolator tap on the connection into the boiler but is it worthwhile to also put a thumb turn one in just before to give isolation outside of the boiler connections.

thanks

 

[45yearsagasman]

Complete overkill. Never heard the like. Just remove flux from your soldered joints on the external surface.

 

[Agile]

Sounds like an illegal DIY gas job!

 

[45yearsagasman]

You don't think an illegal would even contemplate cleaning the insisde of a gas pipe do you? He certainly wouldn't be bothered to come on here and ask for advice.

 

[footprints]

With North Sea gas just wait till the tide comes in twice a day! Sorry whippetwhippet couldn’t resist it.

It’s an interesting point though, with plumbing work, we make a big issue of flushing out flux etc partly to prevent corrosion, with gas we just leave it in there!

Regards
footprints

 

[45yearsagasman]

It does little harm left inside, but so many go overboard with excess flux and still insist on fluxing the fitting and pushing all the excess inside the pipe.
Done correctly little or no flux goes inside.

 

[xr4x4]

You don't think an illegal would even contemplate cleaning the insisde of a gas pipe do you? He certainly wouldn't be bothered to come on here and ask for advice.

Your casting your net over a wide area aren't you?

 

[whippetwhippet]

nothing illegal to see here!

what about the isolator any points of view?

 

[Phill Peck]

With North Sea gas just wait till the tide comes in twice a day! Sorry whippetwhippet couldn’t resist it.

It’s an interesting point though, with plumbing work, we make a big issue of flushing out flux etc partly to prevent corrosion, with gas we just leave it in there!

Regards
footprints

If you use a flux suitable for gas and only flux the pipe noth the fitting any excess will be pushed out. So what's the problem

 

[45yearsagasman]

You don't think an illegal would even contemplate cleaning the insisde of a gas pipe do you? He certainly wouldn't be bothered to come on here and ask for advice.

Your casting your net over a wide area aren't you?

What I said in reply to Agiles instant assumption that it was an illegal gas job was that, why would an illegal bother to ask about cleaning the inside of the pipe?

 

[Agile]

"Instant assumption" ?

I cannot imagine any gas reg person asking this question.

If any gas reg did ask then it would be in the CC where we discuss gas matters all the time!

The fact that both ends of the gas pipe are open is obviously illegal anyway!

 

[FiremanT]

The fact that both ends of the gas pipe are open is obviously illegal anyway![/quote]

 

[CBF]

i've gotta agree sounds like an illegal install as well, i've never heard an RGI ask about cleaning out flux or fitting a "thumb" gas valve before the boiler & you certainly shouldn't be putting water inside a pipe going to be used for gas, OP if you used a RGI as you should you wouldn't have to ask such stupid questions

 

[Dan Robinson]

Seen some dumber questions asked by RGI's recently. And some even dumber answers too.

 

[45yearsagasman]

Well Tony, I for one don't jump to conclusions like that without asking more questions and at least giving the benefit of the doubt.