Appliance to soften water has a container filled with an ion/cation exchange resin, with a salt chamber for resin regeneration, and a sensor to give continuous information on the resin condition

摘要

The appliance to soften water has at least one container (2), filled with an ion or cation exchange resin (1). At least a part of the container is under a tension at the container head (22) or the base (21) so that, as the resin expands, all the inner container walls lie against it. As the volume expansion changes, a sensor (5) or a display indicates the changing tension point. A salt chamber (63) contains brine to regenerate the resin.