Tools for ETP / STP / WTP Operators

Water treatment dosing & cost calculators

Work out how much coagulant, polyelectrolyte or chlorine your plant needs per day, how to make up the solution, and what it costs per litre of water treated. Free to use, no sign-up.

1. Chemical dosing calculator

Based on your flow and how dirty the water is. Gives the chemical needed per day and the dosing-pump setting.

Get a price for this quantity Ask for a free jar test

2. Dilution & solution make-up calculator

How much powder to put in your tank, or how to dilute a strong liquid down to working strength.

3. Treatment cost per litre

Compare chemicals and grades by what they cost per litre of water treated, not by price per kg.

How to use these numbers

The dose ranges are typical starting points from water and effluent treatment practice. Every water is different, so the right dose comes from a jar test on your own sample. Send us a one-litre sample and we will run a jar test and suggest the grade and dose, free of charge.

Useful conversions: 1 mg/L = 1 ppm = 1 g per mÂł. 1 KLD = 1 mÂł per day = 1,000 litres per day. A 0.1% solution holds 1 g of product per litre.

Related: PAC grades · SunFloc polyelectrolyte · Polyelectrolyte supplier · Water treatment chemicals