Water Chemistry
7 tools · 4 guides · 1 comparisons
Dose calculators and balance guides for chlorine, pH, alkalinity, stabiliser and salt — the readings a stop lives or dies by.

Tools
Pool Volume Calculator
Gallons from shape, depth and dimensions — the number every dose depends on.
Chlorine Dose Calculator
Ounces or pounds of liquid, cal-hypo, dichlor or trichlor to hit your target ppm.
Pool Salt Calculator
Bags of salt to reach the cell's target, and the drain-and-refill if you overshot.
Alkalinity Calculator
Sodium bicarbonate up, acid plus aeration down, with the pH drift shown.
pH & Acid Demand Calculator
Muriatic acid, dry acid or soda ash dose from your pH and total alkalinity.
Cyanuric Acid Calculator
Stabiliser to add, or the dilution needed to bring a high CYA back into band.
Shock Dose Calculator
Breakpoint chlorination from combined chlorine, product by product.
Guides
Pool Chemistry Basics
The seven readings, their safe bands, and the order to test and correct them in.
How to Lower Pool Alkalinity
The acid-column and aeration method, step by step, without wrecking pH.
How to Raise Pool Alkalinity
Bicarbonate dosing that lifts TA and leaves pH where you want it.
How to Lower Cyanuric Acid
Dilution is the only way down — the volume, the staging, and how to stop it climbing back.