wascalwabbitt
Member
Reaching out for help on solutions to the following problem and suggestions on correct cycle time and programming.
PROBLEM:
Softener does a regen, shows 1120 gal capacity, water is used only down to 740 and it regens again.
MY SYSTEM:
Softener 268-762-200-1252 Autotrol, 2 cu ft SST60 resin, 12"x52" tank, dark blue injector, #10 backwash plug
This was originally on a smaller tank, which I bought used, then put it on the 1252 tank.
Well water flow of 6 US gpm
25 Hardness
7.5 pH
3.6 ppm Iron before Iron Filter / 0.2 ppm Iron before Softener
2 people in house at 60 gal/person/day
For my system, the Pentair manual (page 10) shows 28,548 grains removal at 6.6 lbs salt total. This gives an efficiency rating of 4,325 grains per lb of salt at the 6.6 lbs total salt. It would be nice to achieve this sort of efficiency if possible.
ESTIMATION:
(2 people)x(60 gal/day/person)x(25 grain/gal hardness) = 3000 grains/day Daily Softening Requirement
Want softener to regen every 9-10 days so I used a 28,000 grain capacity setting.
So: (28,000 Total Grains) / (25GPG Hardness) = 1120 Gallons before a regen is required
(1120) / (120gal/day) = 9.3 days before a regen
MY SETTINGS -- in PROGRAMMING mode
P1 to P3 = - time of day, day of week, regen time - all set appropriately
P4 = 10 - day overide
P5 = n/a only for 742
P6 = 3 - lbs per cu ft salt amount
P7 = 28 - kg system capacity
P8 = 25 - hardness
P9 = 0 - US unit of measure
P10 = 0 - 12 hr clock
P11 = 0 - service interval
P12 = n/a only for 742
P13 = 0 - off - refill sensor control
P14 = 33 - refill rate gpm, 33 is 0.33 gpm
P15 = 38 - draw rate gpm, 38 is 0.38 gpm
P16 = 0 - reserve capacity, 0 is variable reserve with delayed regen
P17 = 30 - reserve amount, 30% factory default
P18 = 1 - flow sensor selection, 1 is performa valve 1" internal turbine
P19 = 1 -
Pr = 0 - refill first option, 0 is not going to refill first
Pd = n/a only for 742
MY SETTINGS -- in CYCLE mode (minutes)
C1 = 10 - backwash
C2 = 6 - draw
C3 = 52 - slow rinse
C4 = 3 - system pause/repressurization
C5 = 4 - fast rinse
C6 = 1 - second backwash
C7 = 1 - second fast rinse
C8 = 6 - refill cycle
I would appreciate any suggestions/criticisms regarding the frequent regen issue and setting up proper cycle times and other programming.
I am under the idea that, in order to get higher softener efficiency, one needs to draw the brine in slower but then will have to increase the rinse time to clean the resin better. Hence, a higher efficiency setup would run a smaller injector. Is this logical or just way out to lunch?
PROBLEM:
Softener does a regen, shows 1120 gal capacity, water is used only down to 740 and it regens again.
MY SYSTEM:
Softener 268-762-200-1252 Autotrol, 2 cu ft SST60 resin, 12"x52" tank, dark blue injector, #10 backwash plug
This was originally on a smaller tank, which I bought used, then put it on the 1252 tank.
Well water flow of 6 US gpm
25 Hardness
7.5 pH
3.6 ppm Iron before Iron Filter / 0.2 ppm Iron before Softener
2 people in house at 60 gal/person/day
For my system, the Pentair manual (page 10) shows 28,548 grains removal at 6.6 lbs salt total. This gives an efficiency rating of 4,325 grains per lb of salt at the 6.6 lbs total salt. It would be nice to achieve this sort of efficiency if possible.
ESTIMATION:
(2 people)x(60 gal/day/person)x(25 grain/gal hardness) = 3000 grains/day Daily Softening Requirement
Want softener to regen every 9-10 days so I used a 28,000 grain capacity setting.
So: (28,000 Total Grains) / (25GPG Hardness) = 1120 Gallons before a regen is required
(1120) / (120gal/day) = 9.3 days before a regen
MY SETTINGS -- in PROGRAMMING mode
P1 to P3 = - time of day, day of week, regen time - all set appropriately
P4 = 10 - day overide
P5 = n/a only for 742
P6 = 3 - lbs per cu ft salt amount
P7 = 28 - kg system capacity
P8 = 25 - hardness
P9 = 0 - US unit of measure
P10 = 0 - 12 hr clock
P11 = 0 - service interval
P12 = n/a only for 742
P13 = 0 - off - refill sensor control
P14 = 33 - refill rate gpm, 33 is 0.33 gpm
P15 = 38 - draw rate gpm, 38 is 0.38 gpm
P16 = 0 - reserve capacity, 0 is variable reserve with delayed regen
P17 = 30 - reserve amount, 30% factory default
P18 = 1 - flow sensor selection, 1 is performa valve 1" internal turbine
P19 = 1 -
Pr = 0 - refill first option, 0 is not going to refill first
Pd = n/a only for 742
MY SETTINGS -- in CYCLE mode (minutes)
C1 = 10 - backwash
C2 = 6 - draw
C3 = 52 - slow rinse
C4 = 3 - system pause/repressurization
C5 = 4 - fast rinse
C6 = 1 - second backwash
C7 = 1 - second fast rinse
C8 = 6 - refill cycle
I would appreciate any suggestions/criticisms regarding the frequent regen issue and setting up proper cycle times and other programming.
I am under the idea that, in order to get higher softener efficiency, one needs to draw the brine in slower but then will have to increase the rinse time to clean the resin better. Hence, a higher efficiency setup would run a smaller injector. Is this logical or just way out to lunch?
Last edited: