What is the Polaris 3900 Backup Valve?
The Polaris 3900 Backup Valve is an emergency back-up system that is designed to provide an alternate means of draining water from the pool in the event that the main drain becomes clogged. The Polaris 3900 Backup Valve is installed in the pool deck and is connected to the main drain. When the main drain becomes clogged, the water is directed to the Polaris 3900 Backup Valve, which then drains the water from …
