Pool care guides

FC levels, chlorine that won't hold, combined chlorine, shocking, and the FC/CYA relationship.

• FC/CYA Chart: How Much Chlorine You Need
• How to Shock a Pool: Step-by-Step Guide
• Why Won't Chlorine Stay in My Pool?

How cyanuric acid protects chlorine, why it raises your FC minimum, ideal levels by pool type, and what to do when it's too high or too low.

• What Is CYA (Pool Stabilizer)? Levels and How to Manage It
• Best CYA Level for Liquid Chlorine Pools
• High CYA in a Pool: Symptoms, Causes, and How to Fix It
• How to Lower CYA: Drain and Refill, Step by Step

Why it goes hazy, how to clear it fast, and what to do when shocking makes it worse.

• Why Is My Pool Water Cloudy?
• How to Clear a Cloudy Pool Fast (24-Hour Plan)
• Why Is My Pool Cloudy After Shocking?

Kill green, mustard, and black algae. Diagnose why it keeps coming back. Stop the cycle.

• How to Kill Pool Algae: Step-by-Step Guide
• Mustard Algae vs. Green Algae
• Why Algae Keeps Coming Back

Ideal pH targets, how to raise and lower it safely, and why it keeps creeping back up.

• Pool pH Too High? Here's How to Fix It
• Pool pH Too Low? How to Raise It
• Pool pH Keeps Rising? Why & How to Stop It

Raising and lowering TA, muriatic acid dosing, and how alkalinity buffers your water.

• Pool Alkalinity vs pH: What's the Difference?
• How to Lower Alkalinity (Without Wrecking pH)
• Pool Alkalinity Too Low? How to Raise It

Scale on tile, flakes from returns, corrosive water, and how to lower high calcium.

• Pool Calcium Hardness: What It Is and How to Fix It
• Pool Scale and Calcium Deposits: Causes and Removal
• Pool Calcium Hardness Too High? How to Lower It

What the Langelier Saturation Index is, why calculators disagree, and how rain and CYA shift it.

• Why LSI Is the Pool Chemistry Number Most Owners Ignore
• Why Two LSI Calculators Can Give Different Answers
• LSI by Pool Surface Type: Plaster, Vinyl, and Fiberglass

When to test, how to get an accurate sample, strips vs liquid kits, and how often to test.

• How to Test Pool Water at Home: Step-by-Step
• Test Strips vs Liquid Test Kits
• Best Time of Day to Test Pool Water

Balancing chemistry, choosing chemicals, tracking readings over time, and managing heat waves.

• How to Balance Pool Water in 4 Steps
• Why You Should Track Pool Chemistry Over Time
• What Chemicals Do I Need for a Pool?

Hard fill water, calcium creep, intense evaporation, and year-round pool care in hot climates.

• Desert Pool Chemistry: The Complete Guide
• Calcium Creep Explained
• When to Drain a Desert Pool

Opening and closing your pool the right way, the correct chemical order, and what every pool owner should know.

• Opening Your Pool for Summer: Chemical Checklist
• Pool Startup Chemicals Checklist: Everything You Need
• How to Close a Pool for Winter: Step-by-Step Checklist
• Pool Closing Chemicals Checklist: What to Buy and How Much
• Pool Chemistry Cheat Sheet: Every Number You Need