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The regeneration cycle goes through 3 steps.
1. Backwash (minimum 30 psi inlet pressure required):
During
the backwash cycle, water flows upwards through the bed,
expanding the media and carrying any contaminants trapped
within it to the drain. The air is evacuated from the tank.
2.
3.
Air Draw:
The air is injected to oxidize the tank. With the
new design, the filter pulls the air into the tank to perform
the oxidation. The unit is replenished with a new bubble of
air. During this step water will run to the drain. There is a
delay at the start of the cycle while the pressure of the air
within the tank reaches atmospheric pressure. During this
time no air is drawn into the tank. Once the pressure has
equalized you can usually hear the sound of air being drawn
in to the unit.
In-Service Position:
The unit then returns to the In-Service
position. While this happens water continues to enter the
tank., compressing the air into a bubble in the top of the
tank. The actual size of the bubble will vary depending on
the on-site conditions.
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Step1
Step 2
Step 3
Step1
Step 2
Step 3
BASIC PRINCIPLES
AIO CONTROL VALVE RENEGERATION SEQUENCE
