I had an Insinkerator installed 12 years ago that began leaking from rust-out, and I decided to replace it as I used the hotwater on a daily basis. I found that detaching the old spigot from underneath my granite countertop was very difficult as the stainless steel sink provided very little room and the old spigot was rusted in. In addition, the new spigot had shorter pipes and hoses, requiring that the new tank could not be mounted in the old location, and it just barely fit next to the deep stainless steel sink. After completing the installation, the unit has worked fine for the past 8 mos.