Do you already have a water softener, reverse osmosis drinking water unit or iron filter in your home? Are they working to your satisfaction? If you don't know or are not sure, call us for a repair service call. We will test the water and let you know if the unit is working. If it is not, we are able to repair most makes of equipment as long as parts are available. If we cannot fix it, there will be no charge for the service call.