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Apparatus for operating a filter arrangement

  • US 5,628,896 A
  • Filed: 10/23/1995
  • Issued: 05/13/1997
  • Est. Priority Date: 10/21/1994
  • Status: Expired due to Term
First Claim
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1. An apparatus for operating a filter system of a swimming pool in proportion to the degree of water contamination, said apparatus comprising:

  • overflow tank means for receiving water from the swimming pool as a function of the number of persons entering into the swimming pool;

    filter means;

    variable output pump means;

    pipe means for interconnecting the swimming pool, the overflow tank means, the variable output pump means and the filter means in a substantially closed loop;

    sensor means for detecting changes in the level of water within the overflow tank means in response to the number of persons in the swimming pool and for generating a first value representative thereof;

    computer means comprising memory means for storing values representative of at least one parameter selected from the group consisting of;

    natural loss per unit of time, fresh water added, and water loss due to spillagemeans for processing the first value and the memory stored values to derive a second value representative of the degree of water contamination; and

    means for controlling the output of the variable output pump means in response to the second signal.

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