Water Treatment Sizing Calculator
The Water Treatment Sizing Calculator finds the design flow and treatment requirements (turbidity, iron, disinfection) for a raw-water source. Example: for 200 people on deep-well water at 10 NTU turbidity and 0.5 mg/L iron, Daily demand = 24 m³/day, Peak flow = 1.5 m³/h, Turbidity class = Slightly Turbid (per PNS 1998 / PNSDW).
How it works
Computed from your inputs per PNS 1998 / PNSDW.
Worked example (Plumbing & Pumps)
Inputs: 200 people on deep-well water at 10 NTU turbidity and 0.5 mg/L iron.
| Result | Value |
|---|---|
| Daily demand | 24 m³/day |
| Peak flow | 1.5 m³/h |
| Turbidity class | Slightly Turbid |
Computed live by WorkHive's calculation engine; standard: PNS 1998 / PNSDW.
How to use this calculator
- Enter the figures for the duty you are sizing: the worked example below uses 200 people on deep-well water at 10 NTU turbidity and 0.5 mg/L iron.
- The calculator returns Daily demand, Peak flow, Turbidity class, computed per PNS 1998 / PNSDW.
- Check the worked example to confirm the method matches how you would do it by hand, then run your own numbers in the interactive tool.
FAQ
What is a water treatment plant sizing calculator?
The Water Treatment Sizing Calculator is a free online tool that computes finds the design flow and treatment requirements (turbidity, iron, disinfection) for a raw-water source. It shows the formula and a fully worked example so you can check the method, not just the number.
How is it calculated?
The result is computed from your inputs following PNS 1998 / PNSDW. The worked example on this page shows a real computation with real numbers.
Is the calculator free?
Yes. WorkHive's engineering calculators are free to use, no sign-up needed for the tools. WorkHive is a free, offline-first maintenance platform built for Philippine industrial plants.
Run it on your own numbers
Open the interactive Water Treatment Sizing Calculator in WorkHive: free, no sign-up needed for the calculators.