Pre or Post Brine Tank Fill

Discussion in 'Water Softener Forum, problems, installation and r' started by statin, Nov 29, 2009.

  1. statin

    statin New Member

    Messages:
    14
    Location:
    Wisconsin
    I remember a discussion a year or more ago about pre or post regeneration brine tank filling. I can't find the post any chance someone can tell me the advantage of each? Thanks GD
  2. Gary Slusser

    Gary Slusser That's all folks!

    Pre helps keep the salt tank cleaner, it allows minimal water to stand in the salt tank between regenerations and reduces bridging problems; all of which you can't say about post refill.

    I know of no advantage to post refill.
  3. Bob999

    Bob999 In the Trades

    Messages:
    448
    Location:
    Pennsylvania
    Gary, How does pre fill help keep the salt tank cleaner?
  4. statin

    statin New Member

    Messages:
    14
    Location:
    Wisconsin
    I have the WS1 EE controller...

    So, looking at the Clack WS1 manual it has programming for both the CS and EE controller. In the EE section there is no mention about how to set up for a pre or post brine tank fill. I would like to do a pre fill because I am worried about a salt bridge forming since my days to regenerate is quite high at 10 days. Maybe its not an issue since I haven't had one form. Is there a way to set it with the EE controller?
  5. Gary Slusser

    Gary Slusser That's all folks!

    Bob, it allows minimal water in the tank between regenerations, so less water in contact with the salt = less dirt etc., especially if there is iron in the water and the control uses raw water for brine refill.

    Statin, you should have bought from me. The EE doesn't have the feature, or some other features that the version I sell has. Ten days between regeneration is not good for resin.

    George, I say if you do it will be rare because there is only 2.5"-3" of water in the salt tank of a pre refilled control valve. But tell me how you think it will happen more frequently.
  6. Bob999

    Bob999 In the Trades

    Messages:
    448
    Location:
    Pennsylvania
    Gary, I still do not understand this point. It seems to me that the same amount of water is put in the tank with either pre or post fill and therefore the same amount of contaminants from the water. Same with the salt--what ever contaminants are in the salt are the same whether it is pre or post fill.

    Please don't misunderstand my question--I think you have made the point that there are advantages to pre fill--I just don't understand how pre fill results in less dirt in the tank.
  7. Gary Slusser

    Gary Slusser That's all folks!

    Pre means the water is added to the tank just prior to being used in the brining cycle of this regeneration. At most the length of time it is in the tank is some minutes over 2 hrs.; 120 minutes 'soak', plus 10-20 minutes of brine draw/slow rinse.

    Post means add the water at the end of this regeneration and leave it sit for days or a week until the next regeneration.
  8. Gary Slusser

    Gary Slusser That's all folks!

    In 1300+ sales using pre refill over 6 yrs (as of next Jan) I have not heard of any bridging.
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