Free engineering tools
Tools that do real engineering
Six dosing calculators and a guided selector, built on the methods our own engineers use. Free, bilingual, no sign-up.
The Selector
Not sure which chemical you need?
Answer five questions about your water and get the right ChimiArt grade with a defensible starting dose.
The Field Lab
Six free dosing calculators
Each one ends in a number you can defend — and a quote request if you want it supplied.
Coagulant dosing
FeCl₃, PAC or alum: dose and flow to tonnes per month of the ChimiArt grade you buy.
OpenJar test optimiser
Your measured jars become a defensible operating dose.
OpenChlorine dosing
Demand plus residual to litres per day of sodium hypochlorite.
OpenAlkalinity & pH correction
Raise or lower — caustic, lime or acid quantities from your target shift.
OpenPolymer make-up & dosing
Neat polymer per month plus the working-solution recipe.
OpenPhosphate removal
Ferric dose from your phosphorus target, checked against alkalinity.
OpenBuilt on AWWA and Metcalf & Eddy methods — the jar test on your actual water always has the final word.