Introduction
Antiscalants prevent mineral scale from forming inside reverse-osmosis and boiler feed-water systems. Getting the dosing rate right protects membranes and heat-exchange surfaces from costly fouling.
How to use the Antiscalant Dosing Calculator
- Enter the system's feed-water flow rate in litres per hour.
- Enter the target antiscalant dose in mg per litre.
- Click Calculate to see the hourly and daily chemical consumption.
Formula and Calculation Method
Dose rate (mg/hr) = Flow rate (L/hr) × Dose rate (mg/L)
Visual breakdown
REFERENCE
Confirm dosing rate against the antiscalant manufacturer's hardness chart
Why use this calculator
Under-dosing risks scale formation; over-dosing wastes chemical and money. This calculator gives operators an instant, auditable dosing figure and a day-long consumption chart for planning chemical deliveries.
FAQs
What units does the dosing pump need?
Convert the g/hr figure to the pump's stock solution strength to get a mL/hr pump setting.
Does dose rate change with water hardness?
Yes — the mg/L figure should come from the antiscalant manufacturer's hardness-based dosing chart.
Can I use this for boiler dosing too?
The same flow × concentration formula applies to most boiler and cooling-tower chemical dosing.