Patent ID: 9675743
Date: 2017-06-13
CPC Classifications: A61M,B01F

Claim:
1. A method performed by a data processing apparatus, the method comprising: receiving, at the data processing apparatus, an indicator related to a thickness of a layer of a solution adjacent to a dissolvable solid concentrate in a container, the indicator including a first measure of a conductivity of a liquid supplied to the container to form the solution and a second measure of a conductivity of the solution leaving an air separation chamber fluidly coupled to the container; and causing, based at least in part on the received indicator, a valve to release more of the liquid supplied to the container and thereby cause a quantity of the liquid to fall freely onto a surface of the layer of the solution to maintain the layer of solution adjacent to the solid concentrate at a depth that is kept within a particular depth range over time, wherein the depth allows liquid introduced into the container to agitate the solution adjacent to the solid concentrate to cause mixing of the solid concentrate with the solution.