Only on a Cat 30. It was a good idea at a time. Everything was already in-place for it. The effort involved in the installation was not insignificant, and at the end, no one was really using it. We are in salt water and my wife could not find too many uses for the salt water in the galley. Rinsing dishes with salt water was not a good idea... so before going down that path, make sure that you know why you are doing it.