Calcium - Pool Lexicon

Educational Resources

Calcium Hardness: Prevent Pitted Plaster and White Crust Rings

With proper calcium hardness levels, you can prevent pitted plaster and white crust rings, ensuring your pool remains pristine—learn how to maintain ideal levels.

Pool Lexicon Team
August 16, 2025

View Post

Testing & Measurement

DPD Vs OTO Tests: What Each Chlorine Test Actually Reads

By understanding whether DPD or OTO tests measure specific chlorine types, you'll learn…

Pool Lexicon Team
October 5, 2025

Hydraulics & Flow Science

Manifolds & Headers: Even Distribution to Multiple Returns

A well-designed manifold and header system ensures even distribution to multiple…

Pool Lexicon Team
October 4, 2025

Hydraulics & Flow Science

Hydraulic Losses at Fittings: 90S Vs 45S Vs Sweeps

Straightforward differences in hydraulic losses at fittings like 90°, 45°, and sweep…

Pool Lexicon Team
October 3, 2025

Hydraulics & Flow Science

Entrapment Physics: Hair, Limb, and Body—How to Prevent

Discover how understanding entrapment physics can help you prevent hair, limb, and body…

Pool Lexicon Team
October 2, 2025