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What Brine ( Salt ) Setting Amount to Use?
Last Updated: 11/08/2013
Question:

Does the adjustment for the salt dosage need to be adjusted based on the hardness of the water?
I haven't changed it from where it was set but didn't know if I needed too.

**** The amount of salt needed is mostly based on the amount of resins being recharged.

3/4 cu.ft. resin = 6 - 9 lbs.
1 cu.ft. resin = 8 - 10 lbs.
1.5 cu.ft resin = 12 - 15 lbs.

Typically,

9 lbs for 8 - 9 inch tanks,
and 12 lbs. of 10" tanks is average.
If there is a lot of iron ( over 2 ppm )
or if the water is really hard ( over 25 grains ),
then 2 - 4 lbs. extra should be used.

So, typically a residential system will use 6 - 12 lbs of salt per regeneration at least once a week.
Very hard water, or water high in iron, may require regenerating every 2 or 3 days. The result is
you will be using at least 30 - 40 lbs. of salt, and more common you will be using 60 - 100 lbs. of
salt per month. Simply multiply the pounds of salt per regeneration times the number of regenerations
in a month to calculate your monthly average usage.

P.S. If you run out of Salt, don't expect to have soft water after a few days. And it may take more than
one regeneration to get the water feeling soft again once you've added salt. I recommend keeping the salt
level above the water level in your Brine Tank. When you start seeing the water level ( normally between
6 - 12 inches ) then it's time to think about adding more salt ( 40 - 120 lbs. ).


Customer Asks
With the new power head, I need to set the salt setting. From your salt-setting video, I need to set it to 12 lbs for 1.5 cubic ft. system, right?

* Yes, at least 12 lbs.

9 lbs for 1 cubic ft, so isnít it supposed to be 13.5 lbs for 1.5 cubic ft?

* It's really 8 lbs per cu.ft. and that is why the 12 lbs. works out.
The Fleck valves come SET to 9 lbs. so we don't mention the 8 lbs. per cu.ft. as that might confuse people.
Also, it's not 100% accurate or 100% critical .. 1 lbs either way.
Varies with water pressure and water temperature ( but that is getting more "technical" then necessary for basis operation / set up ).

What happens if it is set to more than 12 lbs?

* It adds a little more water to the salt tank, and thus uses a little more salt, but you won't notice the few extra gallons of "capacity" created by the extra 1.5 lbs.
If you water is high in IRON, then a little more salt is sometimes recommended. Also, when units have extra "Tannin" resins installed ( to remove color from some well water ).

The minimum is 6 lbs. per cu.ft.
The maximum is 16 lbs per cu.ft.
The most "efficient" ( 75% charge ) is 8 - 9 lbs. per cu.ft.



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