1- Our plumber installed the two drains through a single outlet connection as shown in the attached photo, assuming that the two will not regenerate simultaneously. I hope the drain valves are unidirectional (out only) and this will not cause any cross flow. If that is the case, how do I ensure the two systems are programmed to regenerate on different days (nights)?
Presuming you have the SXT controller, download the service manual. =
http://waterpurification.pentair.co...Download/en/44019-5810-5812sxt-rev-f-my17.pdf is the rev F version. I find the PDF handier than the paper manual, because I can search.
Set the regeneration times (RT) so the cycles don't happen at the same time. The carbon unit cycle will be shorter. If you set RT =2:00 for the carbon unit, and 2:20 for the softener, they will not overlap. Choose your own numbers.
For each controller, I suggest recording the current settings. I would see what color injector is in the softener, although most would not do that. See page 10 "Entering Master Programming Mode" to see how to get into the mode. Step through the values for each softener, and write down the numbers.
Here is an example setup for a softener that is not yours:
System info (not programmed)
salt lb/cuft : 6 ; A choice ( efficiency vs capacity)
BLFC : 0.25 ; Brine Refill rate GPM
cubic ft resin : 2.5 ; Same as (nominal grains/32,000)
Raw hardness : 20.1 ; including iron etc
Estimated gal/day 120.0 ; 60 gal per person typical calc
Est days/regen 18.8 ; presuming days each use reserve capacity
Fleck 5810SXT Settings:
DF = Gal ; Units
VT = 5810.0 ; Valve type
RF = dF2b ; Downflow, Double Backwash
CT = Fd ; Meter Delayed regen trigger
C = 50.0 ; capacity in 1000 grains
H = 22 ; Hardness grains after comp factor
RS = cr ; Cr = base reserve on recent experience
DO = 21 ; Day Override (typ 28 if no iron/Mn)
RT = 3:00 ; Regen time (default 2 AM)
B1 = 5 ; Backwash 1 (minutes) [3...10]
Bd = 60 ; Brine draw minutes
B2 = 4 ; Backwash 2 (minutes)[3...10]
RR = 10 ; Rapid Rinse minutes
BF = 20 ; Brine fill minutes
FM = t1.2 (usual) ; t1.2 is default flow meter
RE = OFF ; Relay
VR = OFF ; ?
2- Water hardness was tested at 21 before the softener was installed. Now it is testing at 6. How does one figure out what the system is factory programmed for? Should I wait for a few regeneration cycles before making any programming changes?
That is the H number, but with 21 hardness, you should probably set H=23 .
3- The Carbon filter 5810 controller display alternates between the time of day and 14. I assume it is the number of days to regeneration. Similarly, the Softener 5810 controller display alternates between the time of day and 1453. Could that be the number of gallons before the next regenerating cycle? Is that normal?
Yes to all.