The water circuit
Pool water reaches the plant room through the main drains and surface-collection lines. It is filtered, conditioned and returned to the pool through the inlet nozzles.
Balance and hydraulics
In overflow systems, the balance tank accommodates changing water levels. Pipe diameter, route length and fitting losses must be calculated before selecting the circulation pump.
Control
Flow, pressure, pH and free-chlorine values should be monitored regularly, and automated equipment should be verified with manual tests.