Dilution math — the bottle, the bucket, the ratio
Lesson 3 of 6 in Cleaning Products, Chemistry & WHMIS · 18 minutes
Wrong dilution is the most common cleaning mistake. Too strong: you waste product, damage surfaces, and risk skin burns. Too weak: the disinfectant doesn't kill germs. This lesson teaches you to read a label and mix correctly every time.
What you'll learn
- Read a dilution ratio off a label
- Convert between metric and imperial units (oz/gal vs ml/L)
- Calculate the correct concentrate amount for any bucket size
- Use a measuring cap or a 'dose pump' correctly
From the lesson
Dilution is the most underrated skill in cleaning. Every commercial product label has a ratio: 1:32, 1:64, 1:128. Most newcomers eyeball it. Most veterans measure it. The difference is real: properly diluted disinfectant kills germs in the contact time on the label; over-diluted disinfectant may not. Properly diluted floor cleaner makes 16 buckets per concentrate bottle; over-strength wastes 5 of those buckets. Get this right and you do more, faster, with less risk.
1. Reading a dilution ratio
Most product labels show a ratio like: • 1:32 — 1 part product, 32 parts water • 1:64 — 1 part product, 64 parts water • 1:128 — 1 part product, 128 parts water • 1:256 — 1 part product, 256 parts water
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