What is a Polaris 380 Backup Valve?
A Polaris 380 Backup Valve is a safety device used in swimming pools and spas. It is a pressure-activated valve that is installed in the pool’s return line. If the main pump fails, the backup valve will activate and pump water from the pool to the house.
How does the Polaris 380 Backup Valve work?
The Polaris 380 Backup Valve is activated by pressure. When the main pump fails, the backup valve will …
