Patent ID: 8967191
Filing Date: 2015-03-03
Classification: E04H,G01F,G01M,Y10T

Abstract:
1. A system for automated control of fill and drain functions in a swimming pool, comprising: a sensor pod having a cavity that is in fluid communication with the swimming pool such that water in the swimming pool flows into the cavity and reaches dynamic equilibrium; and a sensor disposed inside the sensor pod, said sensor is adapted to measure water level changes inside the cavity, wherein the sensor communicates with a remote valve to fill water into the pool when the water mean surface level falls below a predetermined lower threshold and to drain water from the pool when the water mean surface level exceeds a predetermined upper threshold, wherein the sensor comprises a strain gauge coupled to a load beam, and a float disposed below the load beam, the float is not mechanically connected to the strain gauge and does not engage with the strain gauge when water is not present inside the cavity.