Also known as "what is that hissing noise and why is the floor wet?" :-(
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20 years ago
I LOVE Speedfit!
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20 years ago
Yes - if using a modern flux it's water soluble, and comes off easily. I think the original article is referring to Fluxite type paste - which isn't as good anyway.
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20 years ago
No, it was copper pipe I was using into the push-fit tank connectors causing the problem. I think if I had used plastic I would have got away with it. The greater rigidity of the copper pipe made it harder to work with as it was not 100% square and created a greater side force.
About to re-route the pipes from the tank now using 22mm plastic pipe (After spending ages sorting the copper originally). Will let you know how I get on.
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20 years ago
professionals
If you used copper pipe and brass push-fit the problem would not happen. If a copper pipe is slightly ovalled it will round up as it enters the rigid brass fitting.
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20 years ago
I knew what you meant. ;-) And Fluxite will wipe off while the pipe is still hot, but long after the solder has set. It just takes a little experience to know when this is.
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20 years ago
No? Not at all? In that case, if you heat up a test join and continually move it as the solder solidifies, the joint strength won't be compromised - is that what you're saying?
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20 years ago
No, of course not. Did you forgot the /pedant mode/ warning?
Just for you...
Solder for capillary fittings is tin-rich and does not have a *a wide* pasty phase.
-- Phil Addison The uk.d-i-y FAQ is at
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20 years ago
Thank you. So you appreciate why handling/wiping a hot solder fiting is not recommended. You can do it, I can do it - but some grunt somewhere could well bog it up unless ordered not to touch it when warm (on pain of having the re-heated join inserted somewhere!).
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20 years ago
QED.
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20 years ago
There was some shennigans in Africa and pipe was made in half thickness until supplies were restored. It definitely wasn't the time to be installing central heating or rewiring.
Christian.
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20 years ago
As a rule, it is easy, with no real "technique" involved, provided all the preparation is done. If you are wire wooling, using the correct flux and the correct solder, it is almost certainly the torch which is at fault. For plumbing, don't use a wide nozzled torch designed for paint stripping. You need a narrow ended torch that takes a big canister and has piezo ignition. If you spent less than 20-25 pounds on it, then the torch is not big enough.
Christian.