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• What it costs
• Readings
• About Hydro
• Questions
• Reviews
• Report a supply

What it costs

• The app, for households
• Strip test kit, ten tests
• Bulk feed, research and NGO
• Bulk feed, commercial
• Zone coverage sponsorship

Readings

• Thirty-one zones are grey today
• When the household readings were right
• Why the date is bigger than the number
• Parsing results out of PDFs
• Nine corrections, listed
• Boil-water notices and their outcomes

Questions about the readings

• Where does the data come from?
• How accurate is a strip test?
• What do the colours mean?
• Is my water safe?
• Is it really free?
• Can I sponsor a zone?