IDMiamiBob wrote: > Anyone out there know a good way for someone without the room or budget to > invest in RO or DI to lower carbonates? > The old fashioned way was to boil your water and then let the water stand and cool. After cooling (to room temperature) immediately siphon off and use only the top 1/3 to 1/2 of the water. It works, cutting the carbonate hardness by about 1/2, but is time consuming and not very efficient. Mike Wise