It is very likely that your “Bruner” system is no longer servicable since they are no longer available. You may try contacting Culligan. They bought Bruner a couple of years ago but that was the commercial and industrial water treatment company. There were some Bruner residential systems sold years back but I don’t believe they are still in business. The Culligan website is http://www.culligan.com. Or you can call their headquarters at 1-847-205-6000.