I know that these days shower head replacement should be a piece of cake, but not in my case. I have an old shower head fixture consisting of pipe with a ball at the end. I found some "do it yourself" stuff on the web. Now I'm not sure if I must replace the pipe, or try to get the bulb off. (The bulb is very tight on, if it's glued there.) If I must replace the pipe, I have no idea what I am doing. Also, I don't know what they mean by "replacing with a threaded end". If anyone out there can help me and speak "English", I would greatly appreciate it. All I want is to be able to use my knew sunflower shower head.