Those $60 attachments are no big deal. They ship with the fittings, and you also don't need to bother with running a hot-water line - you don't have as many ner

Those $60 attachments are no big deal. They ship with the fittings, and you also don't need to bother with running a hot-water line - you don't have as many nerve endings back there as you think. You just route the cold water that normally goes to the tank into the device first. You turn the water off at the toilet, attach the T-device, and the most monkeying you will probably need to do is maybe a bit of extra tape around the threads so you don't get a drip leak. Difficulty-wise, it's in the same ballpark as hooking up a stereo system, less difficult than swapping out an electrical outlet.