I purchased a home 2.5 years ago with the instant hot water InSinkErator installed. It had worked very well until a month ago. When I saw water under the sink, I knew where the leak was coming from. Unfortunately the unit was out of warranty and I had to replace it. I was happy that the same unit was still available and that it could be replaced by my plumber. It is working well and I hope I get many years of service out of it.