Guys advice please, I had a leak from radiator and my ceiling came down. One of the joints in the ceiling looked greenish so plumber suggested to change that joint before I replaster. Was probably green from the radiator water but I don't know. Anyway he put a hep20 push fit when I assumed he would put what was originally there yorkshire joint. He said he can come back at no expense to me to change to yorkshire but he said hep20 push fit is far superior.not sure I trust a push fit that won't be accessible in my ceiling. Don't want another leak there. Last joint been there 50 years and wasn't leaking.