Yes and NO depending on what kind of piping system. for drain connections yes like tub drains or fixture traps but you need access to all slip/compression fittings. and NO you can not use PVC to...
Not with out an dielectric fitting to prevent electrolytic action from taking place or dezincification of the brass if it is yellow brass ( 60% copper 40% zinc ) Red Brass 85 % copper /15% Zinc will...
Yes, it is still a pipe thread. The pipe dope is there to fill in the gaps in the thread. It is impossible to machine the treads close enough in pipe to not need something in the threads to make a...