Pick what you see
The same backyard pool, five ways it goes wrong. Tap the one that looks like yours.
Pool pictures are illustrations of the same imaginary pool.
Or type in your numbers
Free chlorine, pH, stabiliser and salt from your test kit or strips. Maple checks each against the healthy range and tells you what to add.
Type in your test-kit numbers
Your answer
Type your test-kit numbers above.
Ranges from HealthyWA (WA Department of Health), read 8 October 2026. Amounts are arithmetic for the product strengths shown. Follow the product label. Add chemicals to water, never water to chemicals. Never mix chlorine and acid. Keep children and pets away and never add chemicals while anyone is in the pool. Wait at least 30 minutes, or longer when the product label requires it; retest and meet its reopening conditions before anyone swims.
Tools and guides
Product-neutral answers for backyard pools anywhere in Australia, each with its sources.
ToolPool volume calculator
Work out your pool's litres in metres. Every dose on the site uses it.
ToolChemical calculator
How much chlorine, stabiliser or salt to add, with the sum shown.
GuideMagnesium pools
What a magnesium or mineral pool is, and what the evidence says.
EquipmentSalt chlorinators
Salt levels and cleaning the cell.
EquipmentSand, cartridge or glass?
How each filter works and how to clean it.
CostsWhat a pool costs a year
Chemicals, power and pool service, in dollars.
Meet Maple
Maple is an AI character, not a person or a licensed pool technician. She answers from state health guidance and product labels, shows her sums, and tells you when to call a professional.