Methodology
Classifies jar-test replicates against the declared criterion and screens rapid-mix and flocculation volume, detention, G, and liquid power from entered flow, geometry, viscosity, and operating criteria. Calculated mixing power is power dissipated in the liquid, not motor, shaft, drive, or electrical nameplate power.
Each jar-test observation is classified independently. A dose level is confirmed PASS only when all valid replicates pass; mixed dose levels do not qualify. Replicate responses are not averaged.
Threshold interpolation is linear and bounded to adjacent unique tested dose levels. A replicated dose in a crossing bracket makes interpolation unavailable. Extrapolation is not performed.
Within-range and explicit criteria report dose-level classifications without a single interpolated dose.
Rapid-mix sizing uses V = Q × t or, for an existing basin, t = V / Q. The same physical volume is used for hydraulics and calculated liquid mixing power P = μVG². Gt = G × t.
Each flocculation stage uses either V = Q × t or t = V / Q. Calculated liquid mixing power is P = μVG² and stage Gt = G × t. The sum of stage G×t contributions is descriptive and is not asserted as a universal criterion.
Optional alkalinity demand is the user-entered factor multiplied by the lowest confirmed tested passing dose.