The consequences of bad practices.

[Welder]

That’s an absolute load of old tripe. I have soldered 100’s of thousands of fittings over my career and damp/ wet rag cooled soldered immediately after soldering.. the prelude to wiping the joints of flux. The key is to not just fly in with to much pressure!! I lightly dab the damp/ wet cloth on to pipe, until it solidifies fully and then hand wrap cloth to cool further and clean.
I have spent many years contracting and this is absolutely necessary to work at speed. I can hand on heart say, I’ve probably only had 20/30 soldered joint leaks over my career... and that’s probably due to rushing and not fluxing enough.

To be fair, you've just written it's not a load of tripe!

He specifically said "too quickly" and you agree by doing it slowly. You are in VIOLENT agreement 😉😕🙄

 

[Sharp Point]

To be fair, you've just written it's not a load of tripe!

He specifically said "too quickly" and you agree by doing it slowly. You are in VIOLENT agreement 😉😕🙄

Lol, yep I see your point.

 

[Sharp Point]

My initial reply, was to the waiting two minutes.

 

[Pickwickpick]

I had to repipe the cold water services of a whole school cos even mains pressure hadn't flushed it out. It started literally close to the supply and then over a period of weeks got peppered with INTERNAL leaks as dozens of smaller blobs of flux has stuck to the internal walls and been pushed down the pipe. That was the point I switched perm to heat activated flux cos I realised that, with the best will in the world, one could never clean it all out - especial in remedial works.🙁

Haven't come across heat activated flux before, sounds good, are they any downsides to it compared to using traditional flux?

 

[Welder]

The one I settled on is La-Co.

So far as I can tell, it's always flushed out, doesn't stick like the proverbial to a blanket on the inside of pipes and simply works! Like any change it takes a little getting used, to but once you've a bit of experience it's perfectly fine.

Being a tad anal, I always properly cleaned whatever I was soldering. 😉

 

[ShaunCorbs]

I use laco aswell and I wipe any old pipe joints with flux just to make them shine

 

[Deleted member 96286]

I must say that I'm trying to scale down the use of a flame on jobs to the point of almost eliminating it completely. This was the reason for my recent interest and subsequent purchase of press fitting kit. There will always be a time when solder will be required, but I'm a big fan of press fitting now and the copper push fit systems like Tectite.

 

[skoronesa]

This is a pic of the one fitting I have found that had a pinhole from erosion. It was on a recirc line that ran most of the time.

Also, I found some pipe from the old country!!

 

[Old Account]

I’ve said that?😀😀😀😀

Yes you said that to me mate in regards to the Vaillant 938

 

[Harvest Fields]

Yes you said that to me mate in regards to the Vaillant 938

Ohhh. You can lead a horse to water but you cannot make it drink.😛😛😛

 

[Old Account]

Ohhh. You can lead a horse to water but you cannot make it drink.😛😛😛

That’s the one 🙂 thanks

 

[Deleted member 96286]

Ohhh. You can lead a plumber to water but you cannot make it think

 

[Rob Foster]

I think it is wise to distinguish between sloppy work and down right incompetant work. 1. Some fellas do not know what or how to do things properly.
2. Some know what to do but dont.
centralheatking