Everything in One Place
Download free checklists, reference cards, and tools — or pick up the complete laminated Reference Set and ebook series to go deeper.
Free Downloads
Print it. Laminate it. Use it in the field.
Pool Opening Checklist
Download Free →The complete seasonal opening protocol — equipment inspection, water balance, sanitization, safety systems, and sign-off. Science-based, field-ready.
Salt Cell Management Checklist
Download Free →Water chemistry targets, cell inspection procedure, scale and bonding checks, and a lifespan tracker. From Episode 4 of the podcast.
Heater Diagnostic Flowchart
Download Free →Flow-related heater troubleshooting from start to finish. The Lying Gauge test. Seven-step diagnostic sequence. From the Lying Gauge episode.
Chemistry Reference Card Set
Download Free →The 7.5% Rule CYA/FC table, LSI Quick Reference, and pH & Chlorine Effectiveness. Half-letter, print-and-laminate format.
Pool Closing Checklist
Coming SoonComplete seasonal closing protocol — water balance, winterization, equipment shutdown, and cover installation. Coming soon.
Shock Dosing Reference Card
Coming SoonBreakpoint chlorination formula, when to shock, product comparison, and approximate dose table. Half-letter laminate format.
Free Tools
Chemistry calculators for the field.
LSI Calculator
Enter your current water chemistry readings and get your Langelier Saturation Index instantly. Color-coded result, real-time adjustment recommendations, current vs. desired comparison. Modeled on the Orenda workflow.
Open Calculator →Shock Dose Calculator
Enter your pool volume, current FC, and current CC — get the exact shock dose needed to reach breakpoint chlorination. Cal-hypo and liquid chlorine options.
Chemical Dose Calculator
Any parameter, current reading, target reading, pool volume — get the exact dose in ounces, pounds, or fluid ounces. Every common chemical included.
7.5% Rule Quick Calculator
Enter your CYA level and get your minimum free chlorine requirement instantly. The most important calculation in outdoor pool chemistry, in two taps.
Physical Product
The Pools Scientific Reference Set
Eight laminated half-letter cards on a ring. The complete Pools Scientific field reference — 7.5% Rule, LSI, pH & Chlorine Effectiveness, Pool Opening Protocol, Pool Closing Protocol, Shock Dosing, Salt System Quick Reference, and The Pools Scientific Method. Professional quality. Waterproof. Clip it to your service bag or keep it in the glove box.
- ✓ 8 cards, 16 sides, half-letter laminated
- ✓ Hole-punched corner, metal binder ring included
- ✓ Waterproof lamination — field and poolside ready
- ✓ All cards also available as free PDF downloads above
Ebook Series
The complete guide to pool chemistry.
Volume 1
DIY Pool Care: Fundamentals every pool owner needs
Volume 2
Advanced Chemistry: LSI, water balance, salt systems in depth
Volume 3
Expert Mastery: Professional diagnostics, equipment, cold-climate management