Method of water treatment
AssigneeArch Chemicals, Inc.
InventorMichael J Unhoch
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Abstract
The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. The amount of the maintenance doses is based on the volume of water to be treated in order to achieve hygienic and clear water. The method can be automated for accurate, consistent and safe treatment of water such as found in swimming pools, spas or hot tubs.
Claims10
A method of 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,
- determining an amount of a water treatment chemical to be preserved in a volume of water to be treated,
- calculating a maintenance dose of the chemical to be added to the volume of water to maintain about the amount of the chemical in the water over the time period,
- providing a source of the chemical, and
- supplying the maintenance dose of the water treatment chemical to the volume of water,
- wherein the maintenance dose is calculated
- according to equation (1):
- MD=(PV)(DC)(1)
- where
- MD=Maintenance dose of water treatment chemical (oz.);
- PV=Volume of water to be treated (gallons);
- and
- DC=Consumption of water treatment chemical over the time period (oz. per 1000 gallons);
- and wherein the supplying of the maintenance dose is performed by a pump having a pump tube displacement and which is caused to operate for a run time determined according to equation (2)
- RT=((K)(MD)/(PRPM×PTD))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
- MD is defined as in equation (1).
Dependencies are inferred from the claim text.