Water
If the copper is big enough, you can treat it as if it were cast and use packing and sealant. If the diameters are too different, you can use a rubber coupling to connect the two.
You need to give more info than simply "rigid pipe". What kind of "rigid pipe", what pressure will it have and where you are burying it.
You can use copper pipe.
It is not a good idea to use copper pipe with natural gas as any sulphur compounds in the gas can cause an oxide to form in the copper pipe. Often copper is used with propane. In these instances, soft copper tubing is usually used with compression fittings. The tools required are, pipe cutter and 2 wrenches.
No, it is not.
It is probably referring to the type of fitting. A fitting that is soldered to a copper pipe. It is called sweating when you use solder and a torch to connect copper pipe together or attach fittings to copper pipe.
Galvanized pipe will be silver/gray color. Copper will be copper. Use a magnet, it'll stick to galvanized pipe but not to copper. Drinking water lines should not be black steel pipe.
Use a lead-free silver solder. It is the only thing that can handle the pressure and bond with the copper pipe.
To effectively repair a copper pipe, you can use a pipe cutter to remove the damaged section, clean the ends of the pipe, and then use a soldering torch to join a new piece of copper pipe using solder and flux. Make sure to follow safety precautions and practice proper soldering techniques for a successful repair.
To fix a copper pipe, you can use a pipe cutter to remove the damaged section, clean the ends of the pipe, and then solder a new piece of copper pipe in place using a propane torch and solder. Be sure to follow proper safety precautions and techniques when working with a torch.
To effectively repair a copper water pipe, you can use a pipe cutter to remove the damaged section, clean the ends of the pipe, and then use a compression fitting or soldering technique to attach a new piece of pipe. Make sure to follow safety precautions and use the appropriate tools for the job.