Pool Water & Chemistry
Master pool water: balance, free and combined chlorine, the FC/CYA relationship, alkalinity, calcium hardness, saltwater chemistry, shocking, and the saturation index. Clear and practical.
Pool Water Balance
The full picture: chlorine, pH, TA, CYA, and hardness.
Read more →Free vs Combined Chlorine
FC, CC, and TC explained, and why CC matters.
Read more →The FC/CYA Relationship
Why your chlorine target depends on your stabilizer.
Read more →How to Lower CYA
The only real way to reduce high stabilizer.
Read more →Total Alkalinity
The pH buffer, ideal range, and how to adjust it.
Read more →Calcium Hardness
Why CH matters for plaster and equipment.
Read more →Saltwater Pool Chemistry
How a salt pool makes its own chlorine.
Read more →Chlorine vs Salt Pools
Cost, feel, and maintenance compared.
Read more →How to Shock a Pool
Breakpoint chlorination, done right.
Read more →Phosphates in Pools
Do phosphates really matter? The honest answer.
Read more →Pool Water Temperature
Ideal temps and how it affects chemistry.
Read more →The Langelier Saturation Index
Balancing water to protect surfaces and gear.
Read more →