Dry the outside of the elbow and sand (120-grit paper or cloth) around the leaking joint to remove all surface corrosion. Apply soldering flux around the whole joint and apply heat with a torch until the old solder melts. Add new solder until a shiny ring of solder shows all around the joint.
How do you fix a failed solder joint?
Quote from the video:
Quote from Youtube video: Soon as you see the solder melt. You could move your torch away and let the heat from the joint do the work as to not cook off the flux. At this stage a lot of people will take a wet rag. And do.
Can you Resolder a bad joint?
Since you have leaking joints, heating them up and adding more solder will not work because the new solder won’t get sucked into the joint due to a lack of flux. Sorry to say, each bad joint will have to be removed. I would use a MAPP gas torch, as it burns hotter than propane, which will get the job done quicker.
Can you Resweat a joint?
If you have a leaky joint and the joint leaks at the solder connection, you can re-solder or “re-sweat” the joint to eliminate the leak. This is an easier way to correct the issue than replacing the joint completely.
How do you clean bad solder joints?
Usually, the rework of an unacceptable solder joint would involve the application of flux and re-application of the heat from a soldering iron. This method can also be used to remove excess amounts of solder as the soldering iron will attract excess material onto its tip.
Can you reheat a solder joint?
You can re heat and move it. You might brush a little flux on it first and heat slowly The problem with re heating a joint is getting it too hot and ruining the solder seal.
Can you overheat a solder joint?
CAUTION: Do not overheat the joint or direct the flame into the face of the fitting cup. Overheating could burn the flux, which will destroy its effectiveness and the solder will not enter the joint properly.
How can you tell if a solder joint is bad?
the solder should be shiny after it hardens. If it has gone bad it will stand around on street corners, smoking cigarettes and making weird sucking sounds at female passersby. Another sign of a bad solder joint is if the solder is dull after it hardens, this is what happens with a “cold” joint.
How do you know if your solder joint is good?
A good solder joint should have an even band of solder showing all the way around. If you see an area that looks as if it needs more solder, brush a little flux onto the joint. If the joint is still warm, the flux will melt and flow into the void. Then reheat the joint and resolder.
Can you sand a solder joint?
Quote from the video:
Quote from Youtube video: It's likely that you need to use sandpaper. Now by sanding you can see that the copper appears much much different. It's a little bit shinier and the color is different.
How do you solder cleanly?
Quote from the video:
Quote from Youtube video: It's important to have a clean tip because oxides and charcoal flux residues significantly reduce the tips ability to heat up the connection. These oxides become harder with time and heat.
Can solder be polished?
Polish contains an abrasive element. As such it is better used for the final clean before patina or wax. It gets rid of the very last of the grime off your solder lines.
How do you polish brass after soldering?
Quote from the video:
Quote from Youtube video: Solution first thing you're gonna need is peroxide. Then white vinegar and something to measure with. Because we're in the equal parts of bowls let me get rid of this and make some new solution.
How do you polish copper after soldering?
Quote from the video:
Quote from Youtube video: Now what we're going to be doing is taking a little bit of Emery cloth and grinding down all that extra solder that is left over on our pipe for this job you will need some Emery cloth.
