I didnt even know they had that. I will have to get one. I hate wasting water. Here, we barely get to water our yards much less make water. It can cost as much as $8 a gallon!!!! Thats from the city. The more you use the more it costs. I have an ro unit but cant run it. I buy water from a store that gets a busness discount. I have had a thousand dollar water bill (just water not including electricity). Can't take too many of those.