May be a PBC Pipe, is my good guess....
There are copper fittings that will connect to galvanized.
You can't. There is no fitting to do this. Galvanized has to be threaded.
Yes, with an approved adapter fitting.
Male or female sharkbite adapter on threaded end of galvanized pipe or fitting. No other way.
Yes. Use a threaded fitting, male or female as needed on the copper and screw the galvanized into it.You must use a dielectric fitting to connect copper to galvanized pipe. If you don't, a galvanic reaction will occur and the piping will corrode and leak. You can use a Dielectric Union or a Threaded Brass fitting to join the two types of piping together.UNIONS can leak the best answer would have been a dielectric nipple
A threaded copper fitting on the copper side, male or female, and the galvanized is screwed into it.
Two pipe wrenches. One to hold the galvanized from turning and one to turn the brass fitting. Pull on one and push on the other and it should come out.
No
A fitting made specifically for dishwasher that goes in drain line under kitchen sink.
yes. Copper to Galvanized must have a dielectric fitting to avoid a galvanic reaction causing corrosion and eventual leaks.
Sure why not
Yes, first the Galvanized pipe has to be threaded with a standard thread for pipes, then you buy the correct female socket threaded plastic fitting, screw it onto the pipe using Thread pipe sealing tape, then glue your piping into the socket part of the plastic fitting, simple. Cheers.