My InSinkErator instant hot water tank failed… again. In this video I walk you through exactly how I replaced my tank (this is my second time doing it), because if your unit is leaking or it just stopped heating, you’re definitely not the only one. I show the full swap so you can do it without turning your cabinet into a swimming pool—how I disconnect the old tank, deal with the lines, and get the new one in place cleanly. The big takeaway is the install details matter. I go step-by-step on the InSinkErator HWT-F1000S replacement, and I call out the #1 mistake people make when they plug a new tank in. If you energize the unit the wrong way at the wrong time, you can cook the heating element and shorten the life of the tank fast. I also share a few practical tips to help these systems last longer, plus I point you to the tank and the filter I’m using so you can match parts and get back to instant hot water without guessing.