Pool Myths North Texas Homeowners Still Believe (And What's Actually True)

olgafiktsia10
4 days ago
3 min read

After years of testing water samples from hundreds of pool owners — first at our supply store, now in the field — we can tell you that most pool problems come down to the same myths passed around at backyard barbecues and Nextdoor groups. Let's fix that.

Myth #1: "If the water looks clear, it's safe to swim in."

Clear water can be under-chlorinated, have dangerously low pH, or carry bacteria you can't see. In fact, 71% of Americans believe clear water equals safe water. In Texas summer heat, a pool that tested fine on Monday can have near-zero chlorine by Wednesday — and still look crystal clear.

The truth: Test your water. The look tells you almost nothing.

Myth #2: "The strong chlorine smell means there's too much chlorine."

Completely backwards. That smell is chloramines — what forms when chlorine reacts with sweat and sunscreen. It means your chlorine has already been used up. Red, irritated eyes after swimming? Same cause.

The truth: If your pool smells strongly of chemicals, it needs more chlorine, not less.

Myth #3: "I shock it when it turns green."

By the time your pool is visibly green, you've already lost a week and $200–500 in chemicals. Shocking should be regular maintenance, not an emergency response. And if your cyanuric acid (CYA) is too high — common in pools using trichlor tabs for years — shock won't work at all, no matter how much you add.

The truth: Shock regularly. And test your CYA.

Myth #4: "I run the pump a few hours a day to save electricity."

In a Texas summer, your pump needs to run 8–12 hours daily. Less than that and you get stagnant water, poor filtration, and algae — which costs far more to fix than you saved on the electric bill.

The truth: Running the pump less doesn't save your pool.

Myth #5: "Tablets are all I need for chlorine."

Trichlor tablets raise your cyanuric acid level with every single tablet. CYA never evaporates — it only leaves through water replacement. After a few years of tablet-only chlorination, your CYA is likely so high that chlorine becomes chemically inactive. This is the hidden reason behind "I add chlorine regularly but still get algae."

The truth: Tablets are fine as part of a balanced approach. Test your CYA monthly.

Myth #6: "I brushed the pool, so I don't need to vacuum."

Brushing breaks algae loose from the walls — but once it's loose, it's floating in the water or sitting on the floor. If you don't vacuum it out, it just settles and re-attaches. Brushing without vacuuming is like sweeping the floor into a pile and leaving it there.

The truth: Brush first, then vacuum. Both steps matter.

Myth #7: "My pool was just serviced, so it's fine for two weeks."

Not in a Texas summer. A pool party, a heat wave, or a thunderstorm can throw your chemistry off within 48 hours. Weekly service exists for a reason — and during peak season, some pools need even more attention.

The truth: Summer pool chemistry doesn't hold still. Your schedule should reflect that.

Myth #8: "If the pH looks okay, everything else is probably fine."

pH is one of five things that matter. Alkalinity, calcium hardness, cyanuric acid, and total dissolved solids are just as important — and usually ignored. We've seen pools with "good pH and chlorine" that were a week from turning green because the rest of the chemistry was completely off.

The truth: Full water chemistry is a five-part equation.

The Bottom Line

These aren't failures — they're just gaps nobody filled in when you bought the house. If your pool keeps giving you trouble despite doing everything right, the answer is usually in the chemistry you're not testing for.

We serve homeowners throughout Frisco, Little Elm, The Colony, Prosper, and Aubrey. Request a quote — we'll find what your test strips are missing.

Simple Dimple Pool Service is CPO certified and proudly serves the premium pool market in North Dallas.