The Secondary Pump Kit allows you to finely adjust the amount of water you want to treat. The pump recirculates water and air on itself, reducing consumption because it does not have to fulfill the task of loading the water, but is optimized completely for skimming. The Secondary Pump Configuration (Recirculating) allows the adjustment of three parameters independently:

1. Water flow rate to the skimmer is controlled by the Secondary Pump

2. Foam level is controlled by the threaded rod on the Drain Tube

3. Air flow to the skimmer is controlled by the air intake screw of the Air Silencer