14
SECTION 4 Maintenance & Service
2. Insufficient flow through the AOP-S.
a. Check the pool pump and ensure water is flowing through
the injector (5 GPM minimum).
b. Check to ensure that the pump skimmer and filter are clean.
c. Ensure that there is no debris clogged inside the injector.
Symptom: No gas flow.
1. Injector not supplying adequate suction.
a. Check the pool pump and ensure water is flowing through
the injector.
b. Check to ensure that the pump skimmer and filter are
clean.
c. Check to ensure that the Injector is plumbed in the right
direction.
d. Ensure that there is no debris clogged inside the injector.
2. Tubing is impaired.
a. Check for kinks or clogs.
b. Check for cracks or cuts.
c. Check connections.
d. Ensure that the check valve is installed with the arrow
pointing towards the injector.
e. Be sure that the check valve has not become fouled with
debris. Disconnect the check valve assembly from the
tube adapter on the injector. With the pump running, test
the end of the tube adapter with your thumb, and feel
for suction. Wash your hands immediately afterwards to
remove any residual nitric acid. If there is sufficient suction
without the check valve assembly connected, replace the
check valve assembly.
Symptom: Ozone tubing becomes yellow/brown and brittle.
1. The high concentration of ozone created by the corona
discharge ozone generators, as well as environmental
conditions like UV sunlight, will tend to deteriorate the
supplied tubing. This is normal and acceptable, as long as the
tubing doesn’t become cracked and leak. Because of this, CMP
recommends replacing the check valve assembly every year.
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