Free tool

What does your water test mean?

Type in the numbers from your irrigation water lab report. You'll see right away which values could hurt your crop or clog your system, explained in plain English. Fill in only what your report shows.

How do you irrigate?

Salinity and sodium

Salinity (EC) Total dissolved solids (TDS) mg/L

Sodium adsorption ratio (SAR) ratio pH pH

Chloride Bicarbonate

Boron mg/L

Clogging

Iron (Fe) mg/L Manganese (Mn) mg/L

Hydrogen sulfide (H₂S) mg/L Suspended solids (TSS) mg/L

mg/L is the same as ppm. EC in mmhos/cm is the same as dS/m.

Your results will appear here

Most irrigation water reports list EC, pH, SAR, chloride, bicarbonate and boron. If your system clogs, ask the lab to add iron, manganese and suspended solids.

Don't have a report yet? Ask us which test to order.

About this tool

The ratings follow widely used irrigation water guidelines from the FAO (Ayers and Westcot) and US university extension services for drip clogging. They're general guidance: crops differ in how much salt and sodium they tolerate, and soil matters too. For a recommendation for your farm, send us your results. It's free.