
Pool Water Chemistry 101: Ideal Levels for North Texas Pools
Chlorine, pH, alkalinity, calcium, cyanuric acid. Here is what each number should be for a North Texas pool, why our mineral-rich fill water changes the math, and how to keep it balanced.
Careful water chemistry for water that is safe, clear, and comfortable.
Or book weekly service online, no card neededBalanced water is what keeps a pool safe to swim in, easy on your equipment, and nice to look at. Our mineral-heavy North Texas fill water and that summer sun make it a moving target, so we test and adjust every visit instead of guessing. Get the chemistry right and everything else, from algae control to how long your equipment lasts, gets easier.
Written and last reviewed by Austin Andrews, founder and lead technician, on .
We measure chlorine, pH, alkalinity, calcium, and cyanuric acid, not just the two easy numbers.
Alkalinity and pH come first so that chlorine works efficiently, then sanitizer and specialty balancers as needed.
We dose for heat and sun that burn chlorine off fast, and keep calcium in line so it doesn’t scale up your tile.
Every reading is recorded and sent to you, building a clear history of your pool’s chemistry.
True Texan Pools keeps your water swim-ready all year, across Plano and the rest of DFW. Clear pricing, a photo report after every visit, and Austin doing every job himself.
Free chlorine should sit between 1 and 3 parts per million and pH between 7.4 and 7.6, with alkalinity, calcium hardness, and cyanuric acid kept in their proper ranges. In peak Texas summer we aim for the higher end of the chlorine range because heat and sun burn it off quickly.
NTMWD describes its treated water as moderately hard, and a pool concentrates it: every top-off after evaporation leaves the calcium behind while the water leaves. When calcium and pH climb too high, those minerals fall out of solution as white scale or cloudiness. Keeping both in range on every visit prevents it.
Yes. Salt pools still need their chemistry monitored and balanced, and the salt cell needs to stay clean, especially once calcium has built up. We check and maintain both as part of service.

Chlorine, pH, alkalinity, calcium, cyanuric acid. Here is what each number should be for a North Texas pool, why our mineral-rich fill water changes the math, and how to keep it balanced.

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