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Thread: Mark 89 Salty Water

  1. #1
    DIY Junior Member bfmcfarlane's Avatar
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    Default Mark 89 Salty Water

    I bought a house two months ago with a Mark 89. I added 4 bags of softener and recharged. Everything worked great. Today I added 4 more bags and recharged. The water was very salty so I waited 3 hours and recharged again. Water is still salty.

    Any suggestions how to get the water to not be salty? I read that this could be because there is too much brine but I am not sure how to resolve.

  2. #2
    DIY Senior Member mialynette2003's Avatar
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    Causes for salty water are: DLFC (drain flow control) clogged, restricted drain line, partial air drawn during brining cycle, or no water after brine cycle. I would start with the DLFC and the drain line.

  3. #3
    That's all folks! Gary Slusser's Avatar
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    Other causes are an internal control valve leak allowing more brine refill water into the salt tank than it should. The salt dose lbs set too high, or not sufficient rinse time etc..
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

  4. #4
    DIY Junior Member bfmcfarlane's Avatar
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    Thanks for the replies. We noticed that the salty water only occurs when you turn on the hot water. If you only have the cold water on, then the water is not salty. One other thing that we noticed is that the water does not appear to be "soft". I am sure this makes sense to both of you, but not me.

    So start with the DLFC and the drain line - I have no clue what I am doing here so any tips or guidance would be of great help!

  5. #5
    DIY Member rjh2o's Avatar
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    If the DLFC is plugged or restricted the unit will not rinse properly and the final rinse will be insufficient or if the drain line is plugged the same thing occurs. Make sure the system is on the correct time of day also. It is designed to regenerate at 2am when set at proper TOD. If you are using water while it is regenerating you may be filling the water heater with salty/hard water. If there is a hot water faucet that is dripping/leaking it may be filling the WH with salty/hard water also.
    RJ

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