I replaced the InSinkErator hot water dispenser I'd installed myself in our home about 30 years ago and which had functioned perfectly until the water tank began leaking. I put the new unit in less than ten minutes and connected it to the previous faucet as it didn't make much sense to bother installing the new faucet since the old one worked perfectly. I'll be very happy if I see this new InSinkErator hot water dispenser lasting 30 years as I'll be 113 years old then.