Draining The Filters - Pentair filter Owner's/Operator's Manual

•
Inspect tanks for leaks. The system should be inspected periodically for leaking
around the influent/effluent piping penetrations, drain port, manual air relief fitting,
and on the outside shell of the tanks. A quick visual sight inspection is all that is
needed to accomplish this. In the unlikely event that a leak is attributed to the
vessel, consult the equipment supplier before proceeding with any tank
repairs. Unauthorized repair attempts may void the factory warranty.
•
Take note of system parameters (Influent/Effluent pressure). This is especially
important if you are not using an automatic backwash control system. These
parameters are prime indicators as to whether or not a backwash cycle needs to be
run. They should be checked every couple of days, particularly after periods of
increased bather load.

4.2 Draining the Filters

Some maintenance may require the filters to be drained of all water. To accomplish this
you must:
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Make sure that the system is shut down. Isolate all water sources from the filter(s).
•
Remove the drain cap located on the bottom of the front of the tank. See figure
below for location.
•
Open the manual air relief on top of the tank. This will allow the water to drain
faster as well as to prevent the creation of a vacuum in the tank.
NOTE: A vacuum condition in the tanks can damage the tanks and
possibly other components in the filter system.
•
Replace Caps when water is drained.
Tank Owner's Manual
9/26/05
Figure 2
Pg. 12 of 23
Rev. D