Patent ID: 6125481
Filing Date: 2000-10-03
Classification: C02F,E04H

Abstract:
A pool monitoring and controlling system adapted for use with a pool including a body of water, a water pump, a first pipe connected between the body of water and the water pump, a second pipe connected between the water pump and the body of water, and a dispenser connected to one of the pipes of the pool for dispensing a substance into the pool upon the actuation thereof, wherein the water pump urges water between the pipes, the system comprising:a sensor adapted for connecting to one of the pipes downstream of the dispenser for monitoring a level of the substance within the pool;a controller adapted for connecting to the dispenser and the sensor for actuating the dispenser only when certain conditions are met;wherein the controller is connected a first pressure sensor adapted for connecting to one of the pipes upstream of a filter for indicating a pressure of the water flowing thereby, the controller further connected to a second pressure sensor adapted for connecting to one of the pipes downstream of the filter for indicating a pressure of the water flowing thereby, wherein the controller is adapted for providing an indication upon a difference between the first pressure and the second pressure being greater than a predetermined pressure amount; andwherein the controller, upon the difference between the first pressure and the second pressure being less than or equal to the predetermined pressure amount and the first pressure being equal to zero, further adapted to sample the current second pressure indicated by the second pressure sensor and calculate a mean pressure, wherein the controller is adapted to provide another indication if the mean pressure is below a limit.