Patent ID: 11964887
Assignee: UGSI SOLUTIONS, INC.
Field: Measurement (Instruments)
Classification: CPC C  G | IPC C  G

Claim 0:
1. A method of automatically controlling chloramine concentration in a body of water contained in a reservoir, the method comprising:
a) determining residual chloramine concentration in a water sample obtained from the body of water;
b) determining at least one of the following when the residual chloramine concentration is below a predetermined target chloramine concentration level:
i) an average rate of change in total chlorine concentration based on total chlorine concentrations of water samples obtained from the body of water; and
ii) an average rate of change in oxidation-reduction potential based on oxidation-reduction potentials of water samples obtained from the body of water; and

c) automatically engaging a supply of ammonia and a supply of chlorine to add both ammonia and chlorine to the body of water when:
i) the average rate of change in total chlorine concentration is below a set rate of change in total chlorine concentration;
ii) the average rate of change in oxidation-reduction potential is above a set rate of change in oxidation-reduction potential; or
iii) the average rate of change in total chlorine concentration is below a set rate of change in total chlorine concentration and the average rate of change in oxidation-reduction potential is above a set rate of change in oxidation-reduction potential,

wherein steps a) through c) form at least a portion of a first water treatment cycle, and wherein the method comprises a subsequent water treatment cycle that is different from the first water treatment cycle.