ME!
Hot water pipe rust first as compared to the cold water pipe for the same chemical composition of the water.
Yes, as long as the water coming out of the pipe has a greater pressure than the water that is covering the pipe. If it is the other way around, the water covering the pipe will actually flow into the pipe. Think about it. It just makes sense.
Supply coming from water source is a water service line.
A water pipe.
butthole
Nintendo
Cold water pipe.
Is there a leak in your home's water pipe?
Not with air! Run water in pipe at highest elevation of pipe and see that water drains at end of pipe system.
your mama
Rodney mullen