I recentely gutted my entire bathroom. I had a plumber professionally install the piping for my new shower and tub. However, he didn't complted the install because I wanted to tile the tub surround. I am now done and the bathtub spout sticks out way to far. Is there any way I can cut that off and sweat a new pipe on. I saw a "liquid sweat" at a home store does that stuff work or is standard sweating still the best. Is this something a novic can do or should I have a professional come out?