I have one run of copper water pipe in my basement with a tonne of condensation on it . Why does that one get it and the rest don‘t and what can i do to fix it , (there is enough water cumming off of it to get my floor wet) the pipe runes from the cold cellar to the opposite side of the basement but the whole pipe is wet i have another pipe with the exact same run right beside it except it is 3/4 and it is bone dry.