I was just looking at a few whole house systems on the net. Umm anyone got 10k i can have? Ok maybe not that much but dang. The water in San Antonio is so hard that out of the tap water you can see stuff floating in it. I have used faucet mounted filters for drinking water for years. Just couldnt see drinking stuff. The reason I brought this up is I have to replace the guts in one of the toilets again. Just did this one maybe three years ago. Have to replace all of it, the stand pipe has a 2 inch ring around the top of lime scale. Not to mention the fact that I replaced my hot water heater again. Two in less then 10 years. since I am using ro water for my tank (getting at the lfs) I was thinking of killing two birds with one stone. Getting a softener for the house with a ro unit for drinking and tank water. However the ro units on these home house system only produce 25 gallons a day and there is no way to utilize the waste water. Guess I could just go to home depot and get a softener and then a better ro unit from somewhere else, So if I use the waste water on my washing machine do I put a value or something so I can use normal water when I am not making pure water or what?