Compression fittings.

[Charnwood]

Blimey, we'll be putting Airfix glue on Speedfit joints next.

 

[DeltaT2]

unfortunately dicky thinks everything that was done 30yrs ago is still the best thing to do today. If you use decent copper olives you dont need jointing paste. Its the rubbish quality brass composite olives we get now that are the problem, a bit of jet blue is my preferred route but its really not a big deal what you use as long as it dont leak and its approved for the situation, which as pointed out boss white is not for potable water, and its not a generic term, nonsense. You tell someone to buy bosswhite they will buy bosswhite duuuh !!

Far from the truth, but hey who cares. As for the trade name Boss White, again who cares if some DaftyDIYer puts Boss White on fittings of wholesome water pipes, they'll be breaking 100s of Water Byelaws anyway, so who gives a f.ck!!

Your compression fitting will leak if you don't use a joint paste on the olives!!

Most cheap compression fittings have copper olives anyway. Again, your knowledge is found wanting. I thought you worked for BG son? And spent your day with a FGA probe up some old dear's flue??!!

 

[DeltaT2]

Blimey, we'll be putting Airfix glue on Speedfit joints next.

You may need to mate as the 'O' rings will not last for ever........

 

[chr15]

As for unions, again face to face metals need joint paste. Oh you can read all the manufacturers drivel you like. But Real Plumbers use Boss White or the likes.

Eh? Thats funny, on all the back boilers I service over the years with a union connection to the gas valve, never once have I seen one with paste on the union joint, and they are obviously gas tight.

 

[DeltaT2]

CIPHE = Dad's Army

 

[DeltaT2]

As for unions, again face to face metals need joint paste. Oh you can read all the manufacturers drivel you like. But Real Plumbers use Boss White or the likes.

Eh? Thats funny, on all the back boilers I service over the years with a union connection to the gas valve, never once have I seen one with paste on the union joint, and they are obviously gas tight.

Have you got a LPG ticket mate?? Or do you just fan.y around with Nat Gas?? Not that anyone was debating gas, when was the last time you were at Vision Express?

 

[sooey]

Union nuts on rad valves dick, they're metal to metal and watertight.......most of the time.

 

[boabcelt]

Feeling argumentative today fellas? As far as I'm concerned there is no definite need for any jointing compound to be used on compression fittings, steel pipe unions aye, but compression fittings no. If I have one weeping I am happy enough to give a wee smear of boss white (so shoot me) and on larger ones I use some oil on the threads (54mm etc). I suppose the moral of the story is : Do what you have to to stop the fitting from leaking. And for the record, I served a full apprenticeship before I get pelters for being a cc/ccc

 

[mickyg]

As for the trade name Boss White, again who cares if some DaftyDIYer puts Boss White on fittings of wholesome water pipes

Thats hardly the point, you advised using something you shouldnt in the situation. Now your trying to dig yourself out of it and making yourself look foolish.

Your compression fitting will leak if you don't use a joint paste on the olives!!

er no they don't, can't actually remember the last time I had a leak on any fitting let alone compression tbh, but then I always swap the olives out for decent quality copper ones. How would you even know if by your own admission you never do it? As usual you only know what you know, and what you know is best. Your very narrow minded, but thats typical of a lot of old school plumbers who think they know best, because its always been that way

Most cheap compression fittings have copper olives anyway.

I wouldn't know I don't buy cheap compression fittings, maybe we've just found out why you need all that boss white?

Again, your knowledge is found wanting. I thought you worked for BG son? And spent your day with a FGA probe up some old dear's flue??!!

I did work for BG yes, long time ago now. Not sure what the relevance is though.

 

[swbjackson]

Sussex???!! The water pressure there is pizz poor, in fact you're on a hose pipe ban there son. Lucky if you've 1 Bar water main pressure?? The compression fittings could be hand tight & still not leak!! So take it from a Real Plumber, joint paste on every compression joint, even with your pizz poor Engerlander water pressure.

As for unions, again face to face metals need joint paste. Oh you can read all the manufacturers drivel you like. But Real Plumbers use Boss White or the likes.

Are you sponsored by boss to increase the sales of their jointing paste? Some areas of Sussex may have only 1 bar. Hastings College (where I trained) had an incoming mains pressure of 8 bar. Where I am we run at up to 10 bar at low usage times.

Funnily enough I've been running a new gas supply under a caravan today. Compression fittings with copper olives and no jointing paste. Amazingly they didn't leak. The one that I had to remake on the gas tap to the fire did though despite me putting a smear of paste on it because it was an old fitting.

 

[chr15]

As for unions, again face to face metals need joint paste. Oh you can read all the manufacturers drivel you like. But Real Plumbers use Boss White or the likes.

Eh? Thats funny, on all the back boilers I service over the years with a union connection to the gas valve, never once have I seen one with paste on the union joint, and they are obviously gas tight.

Have you got a LPG ticket mate?? Or do you just fan.y around with Nat Gas?? Not that anyone was debating gas, when was the last time you were at Vision Express?

You said 'any metal to metal joint needs a joint paste' so, no it doesn't.
In your big headed opinion it does but if it doesn't leak then happy days, if it does leak then do something about it.
Your X amount of years in the trade obviously doesn't make you the expert you think it does, get with the program puller, otherwise all these cowboys you keep bleating about will be showing you how to do it.

 

[DeltaT2]

The day a CC/CCC can show me anything new I'd hung up my Footies...

 

[DeltaT2]

What about Type B compression fittings?? Any of you chancers fitted them dry?? Do you know what Type B fittings are??!!....

 

[sooey]

I used to use them a lot dick...or very similar. Not underground though, but had to stand a lot more pressure. Have a guess where.

 

[Whitespirit66]

Just popped some ptfe tape on the olives.

The 15mm fitting fits snuggly on the pipe with no play at all.

The 22mm doesn't fit snuggly so I suspect may be imperial. It's been on there for a week so I don't feel the need to do anything about it immediately.

What next?

Get yourself down to your local plumbers merchants and get a 3/4" olive. Try that on the pipe. If it's a snug fit, get rid of the 22mm olive and use the 3/4" one in the 22mm comp. fitting.



See what you started. No wonder you can never get a plumber when you need one. They're all on here, arguing the toss.