Hydro-Action Design Calculator

Hydraulic Pump Design Requirements

Selects the smallest pump whose curve exceeds your requirement with a built-in 5% design margin.

INPUTS Total Dynamic Head Pressure Required (ft of water) Target Flow Rate at Head Pressure (GPM)

Design point evaluated at 105% of both head and flow (workbook design margin). Pump curves per manufacturer data embedded in this tool.

Recommended Pump

Selects the smallest Hydro-Action tank whose variable storage (between minimum static level and maximum operating level) meets your requirement.

INPUTS Variable Storage Volume (Gallons) Minimum Static Liquid Level (in — from pump selection or buoyancy calcs) Low Profile

Volumes computed from tapered-wall tank geometry exactly as in the Hydro-Action workbook.

Selected Pump Tank

Calculations apply to all tank use cases, including pretreatment, aerobic/clarification, pump, or septic tanks.

INPUTS Hydro-Action Tank

Density of Soil (lb/ft³)

Soil Angle of Friction (°)

Burial Depth (in, grade to top of tank)

Depth to Water Table (in, grade to table)

Minimum Static Liquid Level in Tank (in)

Include weight of soil above tank

Anti-float collar included

Collar Elevation (in below top of tank)

Collar Width (in)

Collar Outside Diameter (in)

% of Circumference w/ Collar

Collar elevation defaults to overall tank height − 1″; collar OD defaults to base ID + 2×width (workbook defaults — edit to override).

Buoyancy Outputs