Shower

Abstract

A recirculation shower comprises a pump for circulating water through the recirculation shower, and a water tank fluidly connected to an inlet of the pump. The tank is positioned at a higher level than the pump. A fresh water supply feeds the tank. Optionally, the shower may have two such tanks, one for hot water and one for cold water, to mix water of a desired temperature into the recirculated shower flow.

1 . A recirculation shower comprising a pump for circulating water through the recirculation shower, a water tank fluidly connected to an inlet of the pump and positioned at a higher level than the pump, wherein the recirculation shower further comprises a fresh water supply for feeding the water tank. 
     
     
         2 . The shower according to  claim 1 , the water tank comprising an overflow outlet. 
     
     
         3 . The shower according to  claim 2 , comprising a water collection reservoir fluidly connected to the inlet of the pump, and an overflow line between the overflow outlet of the tank and the water collection reservoir. 
     
     
         4 . The shower according to  claim 1 , the tank being fed by a thermostatically controlled tap water supply line. 
     
     
         5 . The shower according to  claim 1 , comprising a valve and a control unit opening the valve when the pump is activated and closing off the tank after the recirculation flow has reached a set flow rate. 
     
     
         6 . The shower according to  claim 1 , comprising a second tank fluidly connected to an inlet of the pump and positioned at a higher level than the pump. 
     
     
         7 . The shower according to  claim 6 , wherein the second tank comprises a float preventing overflow. 
     
     
         8 . The shower according to  claim 6 , wherein the second tank is fed by a hot water supply line while the first tank is fed by a cold water supply line. 
     
     
         9 . The shower according to  claim 8 , wherein the two tanks comprise outlet line with proportional valves, wherein the two outlet lines combine to form a single pump feeding line--( 1 - 3  containing a temperature sensor, wherein a control unit controls the proportional valves to minimize the difference between a temperature measured by the sensor and a set value. 
     
     
         10 . A shower comprising a conventional shower with hot and cold water supply lines and a recirculation shower comprising a pump for circulating water through the recirculation shower, a water tank fluidly connected to an inlet of the pump and positioned at a higher level than the pump, wherein the recirculation shower further comprises a fresh water supply for feeding the water tank, wherein the recirculation shower defines a circulation flow path isolated from hot and cold water supply lines of the conventional shower. 
     
     
         11 . The shower system according to  claim 10 , wherein the temperature of water fed to the tank and to the conventional shower is controlled by the same thermostat.