Water Testing & Chemical Balancing
Balanced water is what protects your plaster, your equipment, and the people swimming in it. It is also the hardest part to get right by guesswork.
The Local Problem
North Texas water is hard, and that changes everything
Five numbers, in balance with each other
Pool chemistry is not five independent readings. Move one and the others respond. Most of the bad advice at the big-box store comes from treating them separately.High calcium hardness
Municipal water across Denton County comes in hard. Top off a pool all summer through evaporation and calcium concentrates, which shows up as scale on tile, heater elements, and salt cells.
Alkalinity drives pH
Chase pH without fixing total alkalinity and it drifts right back within days. Alkalinity is the buffer, and getting it right is what makes pH stay put.
Stabilizer creeps up
Cyanuric acid protects chlorine from the sun, but it accumulates and does not evaporate. Too high and your chlorine goes lazy, which is why a pool can test "normal" and still turn cloudy.
What we test and hold
Free chlorine
Your actual sanitizer. In peak summer heat, demand rises fast and a level that held for a week in April will not hold for three days in August.
pH and total alkalinity
Comfort and equipment protection. Low pH is corrosive to plaster, metal, and grout. High pH makes chlorine ineffective even when the level reads fine.
Calcium hardness
The local troublemaker. Too high and you scale; too low and the water pulls calcium out of your plaster to compensate.
Cyanuric acid
Sunscreen for chlorine. Essential in Texas sun, but it accumulates all season and eventually needs dilution rather than more chemicals.
Salt level
For saltwater pools, we verify the cell is running in range. A cell fighting bad water chemistry fails early and is expensive to replace.
Phosphates, when relevant
Algae food, and it arrives with storm runoff and fill water. Worth checking when a pool keeps struggling despite chlorine testing fine.
Common questions
Why does my pool test fine but still look cloudy?
Usually stabilizer that has climbed too high, high pH making chlorine ineffective, or a filter that is not turning the water over. All three test "normal" on a basic strip while the pool keeps looking wrong.
Are strips good enough?
They are fine for a rough check between visits. They are not precise enough for calcium hardness or cyanuric acid, which are exactly the two that cause the expensive problems here.
Is a saltwater pool chemical free?
No, it is chlorine generated on site rather than poured in. Salt pools still need pH, alkalinity, and calcium managed, and they tend to push pH up, so they need attention rather than less of it.
Do you include chemicals?
Standard weekly chemicals are included with weekly service. Large corrective doses get quoted separately and discussed before we do anything.
Tired of guessing at the chemistry?
Let us take the testing and dosing off your plate.