![What's this little loop of copper pipe outside the boiler for, and, erm, should it be leaking? : r/DIYUK What's this little loop of copper pipe outside the boiler for, and, erm, should it be leaking? : r/DIYUK](https://preview.redd.it/ac9fe59rtn681.jpg?auto=webp&s=48bc6373582c906bfd774feddc204c4ce4c92df4)
What's this little loop of copper pipe outside the boiler for, and, erm, should it be leaking? : r/DIYUK
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A copper pipe and dripping outside tap mounted against a brick wall with paint splattered on the wall Stock Photo - Alamy
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