摘要 |
<p>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.</p> |