SPECIFICATION SHEET • SI METRIC
CAT: AQUA

Tank Exchange Rate

Calculate ideal tank turnover time and hydraulic exchanges per day from effective tank volume and continuous flow.

CALCULATION SCOPE — Deterministic calculation within the published assumptions. Independently verify all design decisions and project-specific code requirements.
INPUT DESIGN PARAMETERS (SI)
m³
L/min
CALCULATED SPECIFICATION OUTPUT
Turnover Time
1.67 hours
Exchanges Per Day14.4 count

Related planning checklists

This calculator appears in the following engineering planning checklists:

1. Tank Exchange Rate2. Biofilter Ammonia Production3. Raceway Oxygenation

Technical Methodology & Engineering Principles

GOVERNING EQUATION
Hourly flow = flow in L/min × 60 / 1000; turnover time = tank volume / hourly flow; exchanges/day = 24 / turnover time.
Assumptions & Scope

Ideal completely mixed volume with constant flow. Dead zones, recirculation short-circuiting, displacement efficiency, treatment-loop volume, and biomass effects are excluded.

Operating Range & Boundary

Tank volume and flow rate must be positive.