I think I asked this question already but it didn't get answered. I am drwg with grooved pipe, and not sure if its me or if other people have trouble too, but I find it confusing to know the exact connections to the fittings. sometimes when it says it is connected correctly it looks like it is not and I move it alittle more and it tells me the connection is correct also but now the pipe is a different length so how can it tell me it is connected properly with two different points Is there a way of telling that I am connected properly.