Fleck 5600SXT 64,000 grain Settings Review

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gobears316

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Hi All: First time poster. I've looked at several threads and am hopefully close. I'm attempting to go for a good efficiency of both water and salt, but not compromise hardness too much. We don't need the water "super slick" (as we've not had a softener before) - but clearly don't want to "fowl" the resin or have short term gain for long term pain. Appreciate a quick review. Thank you!

Water: City water supply - 30 gpg hardness, 0.1 ppm iron, 7 ppb manganese

Softener: Fleck 5600SXT Valve (Pentair Brand), Injector 2 (label), Drain Flow 3.5gpm (label), 3/4" paddle meter, 2.0 cu ft resin, 64,000 grain capacity (assume BLFC is 0.5gpm but no label)

Household: 2 adults, 1 teen, 2 children. 160 gal use / day (12 mo avg per water bill).

DF - GAL
VT - dF1b
CT - Fd
NT - 1
C - 44
H - 35
RS - RC
RC - 160 gal
DO - 15
RT - 2 am
BW - 5 min
BD - 55 min
RR - 5 min
BF - 9 min
FM - p0.7
 

Reach4

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The less salt per cubic ft, the more salt efficient, but more hardness breakthrough.
Revised based on numbers from
https://terrylove.com/forums/index.php?threads/help-for-programming-fleck-5810.82673/#post-595983

Your current choice of BF=9 is good to match your stated objectives. You coud back that off to 6 for a little more salt savings.

BLFC​
=​
0.5​
cubic ft resin​
=​
2​
Alternative C and BF pairs:​
lb/cuft
;
C=
;
BF=
;
grains/pound of salt
2.250​
;​
22.2
;​
3​
;​
6564​
3.000​
;
27.7
;​
4​
;​
6147​
3.750​
;
32.2
;​
5​
;​
5723​
4.500​
;
36.0
;​
6​
;​
5332​
5.250​
;​
39.2
;​
7​
;​
4982​
6.000​
;​
42.0
;​
8​
;​
4670​
6.750​
;​
44.5
;​
9​
;​
4393​
7.500​
;​
46.6
;​
10​
;​
4147​
8.250​
;​
48.6
;​
11​
;​
3925​
9.000​
;​
50.3
;​
12​
;​
3726​
9.750​
;​
51.9
;​
13​
;​
3546​
10.500​
;​
53.3
;​
14​
;​
3383​
 

gobears316

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Thanks for your quick reply Reach 4!

Just to make sure I'm reading this correctly - your good with all my settings above, but you think it would / could make sense to go down to a C of 36 and CF of 6 (so 4.5 lb salt) or are you suggesting 6 lbs of salt which would be a C of 42 and BF of 8?

Also thinking about water usage as I think they told me this would be about 70 gallons down the drain each regen cycle ..
 

Reach4

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The second: 6 lbs of salt per cubic ft of resin, with BF=8 is as lean as I would go to start for most people.

5*3.5 gallons for backwash.
5*3.5 gallons for fast rinse
4 gallons for brine fill.
55* (~0.65 depending on injector) for BD+slow rinse) (see graph in manual for slow rinse)
Add them up.
 
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