Automatic regeneration of treating material

Claim 1

A WATER SOFTENER HAVING A SOFTENING CHAMBER ADAPTED TO BE OPERABLY CONNECTED IN A PRESSURIZED WATER SYSTEM AND CONTAINING A GRANULATED BED OF ION EXCHANGE MATERIAL ADAPTED TO BE REGENERATED BY IMMERSION IN A SOFTENING ION SOLUTION, THE IMPROVEMENT COMPRISING A REGENERATION CHAMBER ABOVE THE SOFTENING CHAMBER AND HAVING A BOTTOM OPENING, A VALVE MEMBER OF A MATERIAL LESS DENSE THAN WATER, A SUPPORT SLIDABLY MOUNTED THE BUOYANCY VALVE MEMBER BELOW THE OPENING WHEREBY THE BUOYANCY EFFECT OF THE WATER MOVES THE VALVE TO CLOSE THE OPENING IN THE REGENERATION CHAMBER, A DIP TUBE ARRANGED TO CARRY THE ION EXCHANGE MATERIAL INTO THE REGENERATION CHAMBER, A DRAIN LINE CONNECTED TO THE REGENERATION CHAMBER IN SPACED RELATION TO THE OPENING, A NORMALLY CLOSED VALVE IN THE DRAIN LINE, MEANS TO OPEN THE NORMALLY CLOSED VALVE AND THEREBY ESTABLISH A DIFFERENTIAL PRESSURE ACROSS THE OPENING AND THE VALVE MEMBER TO MAINTAIN THE OPENING CLOSED, A WATER SOFTENING ION SOLUTION TANK, AN ION SOLUTION LINE CONNECTED TO THE REGENERATING CHAMBER AND TO THE ION SOLUTION TANK, NORMALLY CLOSED VALVE MEANS IN THE ION SOLUTION LINE, AND REGENERATION MEANS ADAPTED TO OPEN THE TWO VALVE MEANS TO FILL SAID REGENERATION CHAMBER AND TO REGENERATE THE PORTION OF THE BED FED TO THE REGENERATION CHAMBER.