Pool care, answered
The questions pool owners ask most, answered with real numbers. Every guide ends with a calculator for your own pool.
Pool Green but Chlorine Is High? 4 Real Causes and FixesA green pool with a high chlorine reading usually means metals, too much stabilizer, a misleading test or pollen. Here's how to tell which one you have and what to do.
Pool Salt Cell Guide: How It Works, Cleaning and Low Salt ReadingsHow a pool salt cell makes chlorine, how to clean it, how long it lasts, and why it reads 'low salt' when the water isn't. A practical guide for salt pool owners.
Shocked Your Pool? What to Do Next (and Why It's Cloudy)What happens after you shock a pool, how long to wait before swimming, why the water often turns cloudy, and how to tell when the shock has done its job.
Why Is My Pool Green? Causes and a 4-Step FixA green pool almost always means algae: chlorine fell too low for your stabilizer level. Here's how to find the cause, clear it in days, and keep it from coming back.
Why Is My Pool Cloudy? 6 Causes and How to Clear It FastCloudy pool water comes from low chlorine, a struggling filter, or water chemistry out of balance. Find your cause in a few minutes and clear it the right way.
How to Lower pH in a Pool (and Raise It When It's Too Low)The ideal pool pH is 7.2 to 7.8. Here's how to bring it down with muriatic or dry acid, how to raise it with soda ash or aeration, and why it keeps drifting.
Salt Water Pool vs Chlorine Pool: Which Is Better?A salt water pool is still a chlorine pool. It just makes its own chlorine. Here's how the two compare on cost, feel, upkeep and equipment, and how much salt a pool needs.
How to Shock a Pool: When, How Much and Which Shock to UseShocking means raising chlorine high enough, long enough, to kill what normal levels can't. Here's when to do it, how to find your shock level from your stabilizer, and which product to use.
Liquid Chlorine vs Chlorine Tablets: Which Is Better for Your Pool?Tablets are convenient but add stabilizer and acid every day. Liquid chlorine adds nothing that builds up. Here's how they compare and when each makes sense.