The Model
The pressure differential switch is adjustable for pressure drop and dead band. Backwash will start when the pressure differential reaches set point plus the dead band. For example, if the pressure differential is set for 6 psi, the dead band for 4 psi, and the backwash timer for 4 minutes, then the backwash cycle will start at 10 psi for a duration of four minutes.
Replacing Sand and Gravel
Replace the sand and gravel every two years, when contaminated, or when sand has carried over from excessive water flow.
There are three layers of filter media. First, starting from the bottom, place 200 lbs. of ½” x ¼” round gravel. Second, place 300 lbs. of ¼” x 1/8” round gravel and third, the top final layer, place 700 pounds of #20 filter sand.
Anode Replacement
On top of the filter housing is a sacrificial anode made of magnesium. Inspect and replace when it has depleted.
5-2 Centri-Separator System
The
Water Management Systems and Products | Page 15 |