Hawthorne
Westchester estates frequently draw from well water with elevated iron and manganese. We run baseline metal testing at season open, staged sequestrant dosing, and quarterly tile-line descaling on Signature and Estate plans.
Cyanuric acid (stabilizer) should stay between 30 and 50 ppm for outdoor pools. Over-stabilization is the most common reason chlorine "stops working." We monitor CYA quarterly and drain-dilute when corrective action is needed.
Typical weekly luxury pool service in Hawthorne ranges $250–$600 per visit depending on pool size, water features, and service frequency.