What is a dual-pump spa system?
There are two different ways to run a spa. A one-pump system is where the main pool pump is used to both heat the spa, and drive the therapy jets. A dual-pump system divides these duties. In a dual-pump system, the main pool pump heats the spa, while an independent secondary pump drives the therapy jets. The benefit is that the secondary pump is free from any backpressure or flow restrictions from the adjacent equipment and is installed on a closed loop. In other words the pump that drives the therapy jets pulls hot water from the spa, to the pump, then right back to the therapy jets. What it ultimately provides is a more active spa with less duty on the main pump.
