Recent Review: The service worked out well. You got to be plumbed for it too. They service it for us as well. When we went to the garden show, they said they use these units on submarines for the salt water, and we were looking for a soft water system. I didn't realize that the soft water has salt in it, so you can't drink it. The H20 system uses a filtration system, and it flushes itself periodically once a day. They give you a little unit up on top, and as long as your unit is showing green, your system should be working properly. I don't have to go buy any salt tablets for it, there is no maintenance to it. I have never had them out here, I have called when I have questions, and they tell you over the phone what to do.