RainSoft EC5 Series, Installation & Service Manual

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through the resin, it flows up the riser and through the center of the
piston. The water flows over the top of the piston past the number 1 seal
and out through the drain.
See Figure 13.
Slow Rinse
After all the brine solution is pulled from the brine tank, the air check
ball in the brine float seats. This prevents any air from entering the
mineral tank. The water continues to flow in the pattern of the brine
cycle and then rinses the mineral bed free from any salt.
See Figure 14.
Fast Rinse
The piston lowers and the water flows through the inlet port and around
the piston between the number 2 and 4 seals. The water then flows down
the side of the valve and into the mineral tank where the bed is
compacted. It continues to flow up the riser pipe and through the center
of the piston. As the water exits the top of the piston, it flows out
through the drain port between the number 1 and 2 seals.
See Figure 15.
R
A
IN
S
O
F
T
CONTROL HEAD ASSEMBL Y
BRINE VALVE CAM
BRINE VALVE STEM
VALVE CAM
VALVE ROD
DRAIN
VALVE PISTON
INLET
OUTLET
RESIN TANK
INJECTOR
RESIN LEVEL
RISER PIPE
DISTRIBUTOR
BRINE LEVEL
BRINE TANK
FLOAT
AIR CHECK
Figure 15
R
A
IN
S
O
F
T CONTROL HEAD ASSEMBL Y
BRINE VALVE CAM
BRINE VALVE STEM
VALVE CAM
VALVE ROD
DRAIN
VALVE PISTON
INLET
OUTLET
RESIN TANK
INJECTOR
RESIN LEVEL
RISER PIPE
DISTRIBUTOR
FLOAT
BRINE LEVEL
AIR CHECK
BRINE TANK
Figure 14
Helpful Tip: In this cycle, the system is on
internal bypass. Any water used during
this cycle will be untreated.
Helpful Tip: In this cycle, the system is
providing treated water to the outlet.