GLOSSARY
Water Hardness
Water hardness is the concentration of dissolved minerals — mainly calcium and magnesium — in water. In misting systems, hard water is the main cause of nozzle scale, white deposits on surfaces, and shortened component life.
Also known as: Hard water · Limescale · Mineral content
What water hardness is
“Hard” water carries dissolved calcium and magnesium picked up from rock and soil. The minerals are invisible in the glass — they reveal themselves when water evaporates and leaves them behind: the white crust on kettles, taps, and shower glass is hardness made visible.
Why it matters for misting
A misting system evaporates water by design — so every litre of hard water deposits its minerals somewhere. Inside nozzle orifices thinner than a hair, that scale narrows and blocks the opening; on low-pressure systems whose droplets land, it becomes white spotting on tables and glass. Hardness is behind most of the symptoms in our troubleshooting guide.
What to do about it
Hardness is managed, not hoped away: a water test at the site survey, filtration matched to the result, and the cleaning cadence set accordingly. The full picture — city versus well water, mandatory versus optional stages — is in water quality for misting.