DFW pools collect phosphates faster than most regions.
Seasonal pool care in North Texas is its own science. The advice below is calibrated to DFW pollen counts, freeze risk, hardness levels, and heat. Generic national pool advice gets you most of the way; the local nuance closes the rest.
Why
- Heavy oak pollen + decomposed leaves
- Fertilizer runoff from manicured lawns
- Hard water carries phosphate as a byproduct
Threshold
- < 100 ppb: ideal
- 100–500 ppb: noticeable algae pressure
- 500–1,500 ppb: chronic green water risk
- 1,500+ ppb: needs immediate treatment
The fix
Phosphate remover, then maintain with low-dose preventer. Combined with proper chlorination, takes algae from monthly battle to rare event.