How do I solder a copper pipe? There is a leak in the copper piping, and the solder won't...
There is a leak in the copper piping, and the solder won't stick. How do I fix this?
you can't fix a leak short taking out the leaking joint, or branch of pipe and replacing.
with a torch, clean the pipe first; sand it near very fine emery cloth, then apply flux to the nouns where you want to put the solder. also, you should drain the pipe so it's empty of marine, that way the pipe will get hot ample for the solder to stick, and penetrate the joint. well brought-up luck. Shut off the water and drain the pipe. If in attendance is water at the joint you cannot create a solder mutual. The solder won't flow if the copper is not clean before you apply the flux. Clean the pipe beside emery cloth or sand paper.
Apply the acid flux, fry the joint and apply a non-lead solder.
The solder will flow to the hot spot. So place the flame on the fitting rather than the pipe so the solder is drawn into the integrated.
Answers: first, the copper have to be very clean. sand it down or use some steel wool.
adjectives the water must be out of the pipe or it will never get up to temp.
use soldering flux (acid free) on the verbs copper, apply liberally.
then apply your bake. you need enough roast to get it up to temp relatively quickly, since the flux all burns off and the copper starts to oxidize. apply solder, agree to the copper pipe melt the solder, not the torch.
it should flow nicely, and not be clumpy. if it's clumpy, it's not hot ample.
all the answers are correct here.
your biggest problem will be draining "ALL" the water out of the system in the past replacing the problem fitting where the leak is occurring.
i suggest using union in case you enjoy water problems.
First you have to drain the water from the strip or you won't be able to get the pipe hot satisfactory to solder. Next you have to clean the surface of the pipe near sand paper... steel wool... or emery paper. Next you apply flux smooth mixture this is the thing that forms the bond between the solder and the copper pipe.
Heat the pipe with a torch and after touch the solder to the pipe. When heated enough the solder will be sucked into the joint between the two pieces of copper. Let cool and afterwards clean the surface if you want to. Turn the water hindmost on and you are done.