Charts Hub
Visual range charts for pool and spa chemistry with supporting calculator paths.
Platform v1.0.0 Foundation · QA 96/100
Section Description
This hub consolidates crawlable entry points for /charts.
Featured Content
Hot Tub Chemical Levels Chart
Hot tub chemical levels chart: ideal ranges for chlorine, pH, and alkalinity in spas.
Pool Chemical Levels Chart
Pool chemical levels chart: ideal ranges for chlorine, pH, alkalinity, calcium hardness, and cyanuric acid. Free reference.
Pool Water Balance Chart
How pH, alkalinity, and chlorine work together in pool water balance. Simple diagram and explanation.
Category Cards
Popular Calculators
- Calculators Hub
- Pool Chemical Calculator (Exact Levels in 30 Seconds)
- Hot Tub Chemical Calculator (Safe Levels in 30 Seconds)
- Hot Tub pH Calculator
- Hot Tub Shock Calculator
- Pool Alkalinity Calculator
- Pool Chlorine Calculator (Ounces from Volume + ppm)
- Pool Cyanuric Acid Calculator
- Pool pH Calculator (Hit 7.2–7.6 Without Overshoot)
- Pool Shock Calculator (10–30 ppm Dose in 30 Seconds)
Popular Resources
- Free Pool & Hot Tub Printable Resources
- Vacation Rental Pool Turnover Checklist | Free Printable
- Hot Tub Maintenance Log | Free Printable
- Pool Chemical Log Sheet | Free Printable
- Pool Closing Checklist | Free Printable
- Pool Maintenance Checklist | Free Printable
- Pool Opening Checklist | Free Printable
- Pool Shock Treatment Log | Free Printable
- Water Test Log | Free Printable