
- Drain The Water. Be sure to completely shut off the water at the main valve in your home. ...
- Dry And Sand. You will want to dry the outside of the elbow thoroughly. ...
- Apply Flux. Apply soldering flux around the entire joint. This is essential because it helps to prepare the copper for soldering.
- Heating To Replace The Old Solder. This next step is the fun part, and it involves your soldering torch. ...
- Wait. You must let the pipe cool for at least five minutes. Do not attempt to push this any faster than that.
- See If It Worked. Finally, you can turn the water back on. Let’s hope that your solder worked and that you stopped the leak!
- The Trick. Replace the elbow with a tee with a threaded fitting soldered on one end. The open end can allow moisture to escape.
How do you fix a leak in a soldered plumbing joint?
If it were a compression joint you could probably tighten the nut to seal the leak but it may not be as simple as that with a soldered joint. Traditionally a plumber would apply soldering flux around the whole joint which they would heat with a torch until the old solder melts.
How do you fix a broken solder joint on a car?
Paint a good bit of flux onto the joint and using a hot torch brazing torch. heat it up and then apply a goodly amount of solder. Finish by brushing with more flux after you remove the heat. That usually cures a leaky joint.
How do you remove old solder from fittings?
Just heat the joint up with your torch, once the solder starts to melt use Channel locks to pull the fittings apart. Once the joint is apart, wipe as much old solder off as you can with a rag. Now you can start over.
What happens if you don’t add enough solder to a leaking 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.

How do you fix a leaky solder joint?
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.
Can you Resolder copper joint?
Copper Pipe: If you're making a repair, you'll need a short stretch of copper pipe. Otherwise, you're working on existing copper pipes that need a fitting soldered on. Solder: Also called soldering wire, this is what melts and flows into the joint between two pieces of copper pipe.
How do you seal a leaking joint?
1:452:26How to Seal a Leaking Pipe | DIY Projects - YouTubeYouTubeStart of suggested clipEnd of suggested clipUsing the stanley knife cut off a piece of putty. Need the putty well between your fingers untilMoreUsing the stanley knife cut off a piece of putty. Need the putty well between your fingers until both components are perfectly mixed. Together. Place the putty ball right on the leakage.
Can I solder over old solder?
Just heat the joint up with your torch, once the solder starts to melt use Channel locks to pull the fittings apart. Once the joint is apart, wipe as much old solder off as you can with a rag. Now you can start over. Clean, Flux, solder.
How do you remove solder leak from copper pipe?
0:211:33How Do I Clean Soldered Joints on Copper Tubing? - YouTubeYouTubeStart of suggested clipEnd of suggested clipJust begin sanding that. Off. On the problem areas like this can actually just take it. And use itMoreJust begin sanding that. Off. On the problem areas like this can actually just take it. And use it just like regular sand paper to help grind off all those extra bumps and snags on it.
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. Fix one side firmly so that as soon as it moves you can adjust it and quickly leave it alone.
Does silicone stop water leaks?
Since they are waterproof and offer durable elasticity and stability in both high and low temperatures, silicone sealants work particularly well as plumbing sealants. Plumbing silicone sealants are typically available in tubes and cartridges.
What tape will stop a leak?
There are two types of tape that are commonly used for pipe leaks – pipe thread tape and silicone tape. Pipe thread tape is sometimes called “thread seal tape,” “PTFE tape,” “Teflon tape,” or “plumbers tape.” It helps to create a watertight seal between plumbing joints.
Can you use plumbers putty to stop a leak?
The best place is with one of the most common tools professional plumbers use. Plumber's putty can help fix the leaks that spring from plumbing fixtures around the home.
Do solder joints fail?
Solder joints that are subjected to permanent mechanical loading degrade over time and eventually fail. This failure phenomenon is known as creep, and is more pronounced at higher temperatures, although solder joint failures due to creep at room temperature can also occur.
How do you fix a leaking copper joint?
8:4610:37The CORRECT Way To Fix A Leaking Joint (UNSOLDERING) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSoon as you see the solder melt. You could move your torch away and let the heat from the joint doMoreSoon 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 Resweat copper fittings?
3:375:17How To DESOLDER Copper Pipe and RESOLDER Copper FittingsYouTubeStart of suggested clipEnd of suggested clipSo put your new fitting. On and then we just need to solder just a brief guide on how to solder thisMoreSo put your new fitting. On and then we just need to solder just a brief guide on how to solder this pipe we're going to heat it from the bottom okay heat the joint up from the bottom.
Can you Unsweat a copper pipe?
Plumbers join copper pipe with a torch and soldering paste in a process called sweating pipe. The plumber applies the solder to the juncture of the pipe and fitting, making it watertight and permanent. To make repairs, it is sometimes necessary to take the joint apart. This process is known as unsweating pipe.
How do you fix a bad copper solder joint?
8:0910:37The CORRECT Way To Fix A Leaking Joint (UNSOLDERING) - YouTubeYouTubeStart of suggested clipEnd of suggested clipApply a thin layer of flux all around it like this and get some locking pliers on the pipe toMoreApply a thin layer of flux all around it like this and get some locking pliers on the pipe to lightly tap it in place until it reaches the mark.
Can copper compression fittings be reused?
In compression fittings, there are three main fittings which include, the compression ring, compression nut and compression seat. They are safe to be reused and apply to half the movement of the pipe outward from the fitting.
How to fix a leaky pipe?
Easy. If you can vacuum out the water from the pipe. Paint a good bit of flux onto the joint and using a hot torch brazing torch. heat it up and then apply a goodly amount of solder. Finish by brushing with more flux after you remove the heat. That usually cures a leaky joint.
Can you resolder pipes when they are wet?
You had better start thinking about cutting out the faulty part and inserting a compresssion piece. It is very difficult to re-solder pipes once they are wet.
Is it a real mare to get back to a straight piece of pipe to hack out the single wee?
It's just a real mare to get back to a straight piece of pipe to hack out the single weeping joint.
Is flux good for soldering?
If you use electrical solder this has cores of flux within the solder and the flux is particularly good and will usually enable a repair to be made to a badly soldered plumbing fitting without taking it apart.
How to get solder sucked into joint?
Do not skimp on the flux. Heat up the fitting, when the flame turns green it is hot enough. Quickly add the solder all the way around the fitting. It should melt immediately and get sucked into the joint.
Why won't my solder work?
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 solder a pipe with a damp rag?
Don't forget to wipe excess solder off the joint before it cools using a damp rag, nothings worse than an ugly joint (except maybe a leaky joint). And don't forget, soldering pipes is an art. And like most things, it takes lots of practice to get good at it.
Can you solder with a torch?
I am not great at soldering so I find it really helpful to have someone else help. One person can use the torch and other uses the solder. That way you can start soldering right when the torch is off of the pipe.
Is liquid flux better than paste?
I am no pro at this stuff, but I have found that for my amateur stuff, I have much better luck with the liquid flux than the paste. With the liquid, you don't have to worry about getting dirt back into the mix..
Do you have to redo a leaking joint?
Because all of these joints are really close together, you will probably have to redo them all. At a minimum you need to heat up the leaking joints and pull them apart, and then re-solder them.
Should you apply flux to joints?
You should not be applying flux to joints you are not working on, take each joint one at a time. If the joints are all close to each other, try doing the joints out of order. Solder one joint, then move to a joint further away, then back to a joint near the first, etc.
How to stop a leaking copper joint?
When a leaking soldered copper joint is detected in your heating system the first question you ask yourself is how to stop the leak. If it were a compression joint you could probably tighten the nut to seal the leak but it may not be as simple as that with a soldered joint. Traditionally a plumber would apply soldering flux around the whole joint which they would heat with a torch until the old solder melts. New solder would then be added until a shiny ring appears around the joint which is left to cool before turning on the water. At that point it is a case of fingers crossed in the hope that the leak is sealed. The process of looking for a plumber is time consuming and the labour cost can be substantial so are there any alternatives? There are a number of sealants on the market for curing leaks but they do not comply fully with the criteria for a safe and effective seal. You really need to search for a product that first and foremost has the capability of sealing the leak permanently so you will not have to return to the problem again and you have to ensure that the solution is absolutely non-adhesive so it will not clog the central heating system. It also needs to be a safe solution that has protective qualities and is non corrosive so that any seals in the pump are not compromised. It should also contain a lubricant component that will protect any working mechanical parts in the heating system, especially the circulating pump. The product must also be compatible with both plastic and copper pipes and any anti rust treatment present in the system. Over the recent past an amazing sealant product has been developed by C Tec that provides the perfect sealant for leaking copper solder and compression joints in a central heating system.
What is a liquid sealant?
It is a viscous liquid sealant that is poured into the heating system to provide an instant and permanent cure to the leaking soldered copper joint. This amazing solution dispenses with any other traditional fix and can be poured directly into the heating system to not only cure the immediate leak but to protect the system in general ...
Can sealants cure leaks?
There are a number of sealants on the market for curing leaks but they do not comply fully with the criteria for a safe and effective seal. You really need to search for a product that first and foremost has the capability of sealing the leak permanently so you will not have to return to the problem again and you have to ensure ...
Can you use Miracle Seal on copper pipes?
All you have to do to apply this solution is shake the container well and then pour the contents into the heating system. Miracle Seal is unquestionably the miracle cure for water leaks.
Is a lubricant safe for a heating pump?
It also needs to be a safe solution that has protective qualities and is non corrosive so that any seals in the pump are not compromised. It should also contain a lubricant component that will protect any working mechanical parts in the heating system, especially the circulating pump.
What is soldering made of?
Soldering is a process of joining different types of metals together. The solder itself is a metal alloy. It is typically made of tin or led , which is melted using a hot iron or torch. It is best to avoid lead solders, as they are toxic. This heat creates an electrical bond with the copper pipe.
What hand do you hold a solder torch in?
This next step is the fun part, and it involves your soldering torch. If you are left-handed, you will hold your torch in your right hand, and vice versa. You should have a leather glove or cotton rag in one hand. You will need to heat the pipe with a torch until the old solder melts.
What to do if your water pipe is dripping?
If your pipe continues to drip, you will need to turn off the water again. Then, open your faucets to drain the line once again. The difference this time is you will need to cut out the whole elbow. Although this may seem irrational, it may be your only option.
How to replace elbow with tee?
This moisture will actually escape as steam. Since the moisture turns into steam, you will be able to heat the joint enough to melt the solder. Once the pipe has cooled, then screw in a threaded plug .
Can you do soldering yourself?
If you aren’t sure if you can do a soldering job or aren’t comfortable with it, then you may want to hire a professional. However, you can always attempt it first and then hire if it doesn’t work. When the professional is working on it, as for tips and try your best to observe what is going on. That way, you can do this on your own if the need ever arises.
Can you solder a pipe if you don't try it?
You will want to dry the outside of the elbow thoroughly. If you do not fully try the pipe, then you will not be able to solder it because water and fire do not mix.
Can you put solder over a pipe?
You can put it over the end of the pipe, almost as if you are shining a shoe. Do so from many different directions, and make sure that the solder is cleaned off. Any and all surface corrosion needs to be removed.
