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Possibly the same reason it has a blue line in the USA to show it is compatible to type L tubing used for domestic water supply.

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13y ago

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What is the white-blue buildup on outside of copper pipe to hot water heater?

It is copper oxidation.


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How can I repair a copper water line?

To repair a copper water line, you can start by turning off the water supply, cutting out the damaged section of the pipe using a pipe cutter, cleaning the ends of the pipe, and then soldering a new piece of copper pipe in place using a propane torch and solder. Finally, turn the water supply back on and check for any leaks.


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To fix a copper water line, you can use a pipe cutter to remove the damaged section of the pipe. Then, clean the ends of the pipe and the inside of a copper coupling. Apply flux to the cleaned surfaces, insert the coupling, and solder the joint using a propane torch. Finally, allow the joint to cool and check for leaks.


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we are one of the largest manufactuer of copper and brass pipes, some of our copper pipes for medical gas using. tang@hailiang.com


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What is an alternative method for cutting copper pipe if a pipe cutter is not available?

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I am sorry, but can you PLEASE rephrase your question? Can WHAT be used for copper pipe? When? How? Why?


What copper tube is available when using the grooved method of joining?

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