Yes as it takes about 5 minutes to teach an 8 year old how to clean and properly solder copper fittings... The only problem is learning how to size the piping system to prevent erosion and learn to compensate for the coefficient of expansion per degree of temperature change to prevent a noisy system
For domestic water, drain lines, heat lines.
The water source is copper
Water lines or waste?If it is waste or vent lines you can use a water Jetter that will scour the lines to a like new condition
Yes no problem
Water lines BELOW ground
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.
Copper does not rust. It can however be eaten by low PH water and Chlorine.
== Answer== Let water run from every fixture for about 10 min. this should do it.
For cold water,start at the water meter, the follow it to the hot water tank for the hot lines. They are pretty easy to see, they are either copper or pex, or galvanized pipe.
Yes, eventually a pin hole in pipe will cause a leak.
Depends on what you are doing. soldered is for copper water lines. Threaded can be for water, gas, or anything else.
This means that copper will not absorb the heat from the water as much as the aluminum. Aluminum will "steal" more heat from the water- which you do not want. You need the heat to stay with the water until it serves its purpose.