Apparatus to control the water level in a swimming pool

Details Apparatus to control the water level in a swimming pool Apparatus to control the water level in a swimming pool

1975-05-21

1976-12-21

Artis, Henry K.

Baths, closets, sinks, and spittoons

Dry closets

With heating meas

4172, 137426, 137428, E04H 316, E04H 318, F16L 2102

Patent

active

039979253

ABSTRACT:
Apparatus to maintain the desired water level in a swimming pool includes a stilling chamber receiving pool water from an equalizer pipe connected to the pool essentially below the desired water level. The stilling chamber is located externally of the swimming pool at the same general elevation as the desired water level so that a water level detector in the stilling chamber will open a valve in a water supply line to supply make-up quantities of water to the swimming pool to maintain the desired water level therein. In one form, the detector includes a plurality of probes extending downwardly within a secondary stilling chamber member located within the main stilling chamber. A relay unit receives an electrical signal when the detected water level falls below a desired water level to open a solenoid-operated valve located in the water supply pipe. In the second embodment, a valve assembly in the stilling chamber is mechanically operated by a float connected by a control arm to the valve assembly.

REFERENCES:
patent: 1820981 (1931-09-01), Fever
patent: 2707482 (1955-05-01), Carter
patent: 2739939 (1956-03-01), Leslie
patent: 3386107 (1968-06-01), Whitten, Jr.
patent: 3739405 (1973-06-01), Schmidt
patent: 3759286 (1973-09-01), Page
patent: 3908206 (1975-09-01), Grewing

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