"We closed on the house Friday. By Sunday the pool was the color of pea soup. I didn't know if you could even fix that."
— Jordan M., Westlake Hills


The Problem
Free chlorine had dropped to zero, pH was at 8.4, and a severe algae bloom had taken hold. The previous owners had gone two weeks without treatment during the sale.
Diagnosis Log
Day 1 · 8:00 AM
Arrived, pulled water sample. FC: 0 ppm, pH: 8.4, TA: 60 ppm. Algae confirmed by brush test.
Day 1 · 9:30 AM
Shock treatment — 4 lbs calcium hypochlorite per 10k gallons. Adjusted pH to 7.2 before shocking to maximize chlorine effectiveness.
Day 1 · 2:00 PM
Added algaecide and clarifier. Vacuumed dead algae to waste, bypassing filter.
Day 2 · 7:00 AM
Water visibly clearing. FC holding at 8 ppm. Backwashed filter twice. Final pH adjustment to 7.4.
Water returned to a free chlorine of 3.0 ppm, pH 7.4, total alkalinity 110 ppm. Jordan's family swam the following morning.
Result · Rescued in 48 hours



