Culligan 9" Owner's Manual page 12

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Pre-Rinse Mode
The Pre-rinse mode is used to pre-rinse the softener resin bed or filter media. The pre-rinse in flow
meter mode will occur after the control has sensed that no water has flowed through the control for
a period of X hours (can be set through the programming menu). When the control is in this mode,
once the X amount of hours have elapsed the control will cycle to the fast rinse position for the pre-
set length of minutes and then return to the home or service position.
Note: Be sure to set the brine safety level float to the proper position when using this mode
since the refill step also occurs in the fast rinse position. Failure to do so will result in a higher salt
dosage than anticipated.
Down Flow Regeneration
Water and regenerate flow downward through the media tank.
Up Flow Regeneration
Water flow is downward and regenerate flow is upward through the media tank. The significance
of this is that regeneration will be most effective in those parts of the resin bed which are treated
with the freshest regenerate solution. There will tend to be less hardness leakage with up-flow
regeneration.
Proportional Brining
The control monitors your softened water usage making only enough brine to regenerate that part
of the resin bed that has been exhausted. In this way the amount of salt used relates directly to the
amount of softened water used, making it more efficient and cost effective. Proportional brining
can only be used with upflow regeneration. The Aqua-Sensor or meter can be used to initiate a
regeneration.
Dial-a-Softness
®
Dial-a-Softness is a manual adjustment built into the control valve that allows for variable hardness
bypass into the softened water. The hard water bypass can be adjusted from 0% to 30%. The Dial-
a-Softness also increases the softener capacity in proportion to the percent hard water bypass (less
salt used).