15
Filter Operation
ECOWATER
S Y S T E
M S
GENERAL INFORMATION
The air injector adaptor installs between the filter
valve and mineral tank as shown in Figure 1. A pump
injects air into the iron filter through the adaptor. The
air oxidizes iron and it is mechanically filtered by the
filter mineral bed. The injector adaptor float allows
excess air to vent from the tank.
SERVICE, BACKWASH AND FAST RINSE
SERVICE (Figure 11):
Unfiltered water enters the
valve inlet port. Internal valve porting routes the wa-
ter down and out the top distributor, into the mineral
tank. The water is filtered as it passes through the
mineral bed, then enters the bottom distributor. Fil-
tered water flows back into the valve and out the
valve outlet, to the house filtered water pipes.
In time, the filter needs cleaning to remove sedi-
ments, dirt, iron, etc., from the mineral bed. This
cleaning is done in two stages, or cycles, called
backwash and fast rinse. It is started automatically
by the timer.
BACKWASH (Figure 12):
The timer starts the valve
motor and moves the valve into backwash position.
Water is routed down and out the bottom distributor,
up through the mineral bed, and out the top distribu-
tor to the drain. The fast flow (controlled by a flow
plug in the drain fitting) flushes dirt, sediments, iron
deposits, etc. to the drain. The mineral bed is lifted
and expanded for maximum cleaning.
FAST RINSE (Figure 13):
Valve rotation positions
the inner discs so water flow enters the mineral tank
through the top, and exits at the bottom, to the drain.
The fast flow of water downward, packs the mineral
bed and prepares it for return to service.
The timer energizes the valve motor again to return
the valve to service.
WATER FLOW PATHS
FIGURE 11
SERVICE CYCLE
POSITION
SWITCH
