Patent ID: 7575673
Filing Date: 2009-08-18
Classification: C02F,G01F

Abstract:
1. A system for treating a volume of water to maintain a predetermined amount of a water treatment chemical in the volume of water over a time period comprising, a pump having a pump tube displacement cooperatively connected to a computer for control of the pump, a source of chemical for supply to the pump for delivery by the pump to a volume of water, causing the pump to operate for a time sufficient to supply an amount of water treatment chemical to the volume of water sufficient to maintain about the predetermined amount of water treatment chemical in the volume of water over the time period, wherein the pump is caused to operate by a computer programmed according to Eqn. 2: where: RT=Run time of pump (sec) PRPM=Pump speed (RPM) PTD=Pump tube displacement (ml)/pump revolution K=1776 ((sec-ml)/(min-oz)), and where