Swim University®

Metals and Stains in Your Pool Water? Do THIS 🪙

Switching from Chlorine to a Salt Water Pool? It's Easy 😉

Cal-Hypo Chlorine Tablets: Are They Better? ⚠️

How to Open and Prep Your Pool in 48 Hours 🏊

Why is My Pool Losing Water Overnight? 😰

No Pressure on Your Pool Filter Gauge? ⬇️

You Closed a GREEN Pool, But It's Time to Open... 😱

If you're dealing with high alkalinity or high pH in your pool, you can use two different kinds of acid: Muriatic acid or pH decreaser (which is just a dry acid). We just updated this article for 2026 to include a new chart and calculator: swimuniversity.com/muriatic-acid/

Can I Add BLEACH to my POOL? Why It Doesn't Work 🚫

Is Your HOT TUB LEAKING? How to Find and Fix It 💧

Need a New POOL LINER? Watch This First 🛑

Hate POOL TEST STRIPS? Use This Instead 😉

Which Chemicals Does Your HOT TUB Need? 🤔

Buy This, Not That: POOL CHEMICALS ❌

Don't Buy These Hot Tub Chemicals ⚠️

No BACKWASH Setting on Your POOL FILTER? 🤷‍♂️

Is Your HOT TUB COVER Trash? 💀 (5 Signs)

Pool's Salt Cell Stop Working in the Cold? Do This ❄️

How to Clean HOT TUB JETS 🚿

What's That STAIN in Your POOL? (Vitamin C Test 🍊)