Typically no soldering (nor a plumber) is needed. From the sink’s hot water shut off valve you disconnect the line to the sink, install a splitter, then reconnect sink line and your new bidet hot water line. We had to drill a small hole in the wall of the vanity so the bidet hot water line could pass through it, but that’s as hard core as it got. Then viola! The unknown pinnacle of civilized living suddenly appears.
