
ATI A15/66 Residual Sulfite Monitor
34
O&M Manual
Rev-W (8/10)
Figure 11 - Pump Head Assembly Exploded View
AIR FILTER REPLACEMENT
The air pump that supplies stripping air to the reactor assembly contains a small inlet filter. Over
time, this filter will accumulate dirt and dust removed from the air used by the pump. This filter should be
replaced once a year. Open the rear compartment of the chemistry module to access the pump. On the
inlet of the air pump, you will see a porous plastic filter connected with a short piece of silicon tubing.
Remove the old filter and discard. Replace with a new filter element. One spare filter is supplied with the
unit, and additional filters are listed on the spare parts list.
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