The system has two water temperature sensors: one (5) near the pump and filter and another (2) up at the solar collector panels. Whenever the solar collector panels (4) are about four degrees warmer than the pool water temperature, an automatic control system (1) activates a motorized valve (3) to send pool water through the solar collector panels.

Cross Section of
Panel Header

Collector Assembly:
Headers are molded directly to the extruded absorbers, in two-inch widths. Panels are built in nominal four-foot widths by thermal welding the two-inch molded header together. Absorber strips are sonically welded together for easier handling. Molded corner pieces permit precise connection of panel arrays for error proof, watertight installations.

Factory Testing:
Every panel manufactured must pass an internal pressure test at 90 psi before being approved for shipment.

Panels in typical operation will only experience pressures of 12–40 psi.

Composition: Panels are formed from raw pellets of a polypropylene copolymer blended with carbon black, synergistic antioxidants and ultraviolet stabilizers.