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I had this dilemma happen to myself. There are two options to assist you. I purchased a small wet/dry bucket vacuum from the Home Depot $20 has plenty of power. Take a copper fitting like a coupler or 90' elbow and tape it around the vacuum hose. Place the fitting over the copper pipe and vacuum all the excess water out. You can hear and see the water hose pumping water. Leave it on for a while until it pulls the water from the lines. Now your ready to solder. Use lead free solder it works well to with a little water. Option two , they now sell fittings which require no soldering by Shark [brand name] sold at the home depot a really good product, just a little expensive.

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14y ago

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How do solder copper pipes with water in them?

That cant be done because as long as there is water in them the temperature of the pipe wont go up enough to allow the solder to flow. you have to remove the water.


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It is called Brazing rods or lead free solder


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No, it will not affect them


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Sandcloth the end being soldered. Squish the end with pliers so it is tight. Put flux on the end and solder. Easier to buy a copper cap and solder that on!


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To effectively solder copper pipes, follow these steps: Clean the pipes and fittings thoroughly with emery cloth or a wire brush. Apply flux to the cleaned surfaces to help the solder adhere. Heat the joint evenly with a propane torch until it is hot enough to melt the solder. Apply the solder to the joint, allowing it to flow into the connection. Let the joint cool and wipe away any excess solder.


Why is copper used for water pipes?

Copper is used as hot water pipes because the copper will not corrode when the hot water goes through the pipes


What is soldering gun used for?

It melts solder. Solder was originally a mix of lead and tin that was used to join copper to copper (pipes and wiring) It is in the shape of a pistol, but does not shoot anything.


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Lead free solder for potable water pipes


Why is copper used for hot water pipes?

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A plumber has put 18 gallons of antifreeze into my water pipes can the antifreeze interact with copper or lead pipes or pipes with lead soddering and cause contamination to the water?

I can't think you are talking drinking water pipes because anitfreeze is poisonous. Nor should you have lead pipes or lead solder in drinking water pipes. So either sleeve pipes or heating pipes then. Antifreeze has inhibitors designed to prevent corrosion.


Will natural gas eat away at solder on copper pipes?

Yes, natural gas can corrode solder on copper pipes over time. This is due to the sulfur compounds present in natural gas that can react with the copper and cause deterioration of the solder joint. It is essential to use approved materials and proper installation techniques when working with natural gas lines to prevent corrosion issues.


How do you get water out of a pipe in order to solder copper pipes?

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