Note as of June 2018 injectors, seals and spacers, and brine valves replaced as needed.
Monitor calcite and kat1 tank for seal degradation due to chlorine.
By January 2019 valves should be checked for leaking down backwash line.
Note: 25” BLFC button is fine for your 40K Softener. The DLFC should be a “200” or “240” button.
Other buttons have not be checked.

7000sxt Calcite 
DF gal
RF dF2b
CT Fd
C 24
H 20
RS SF
SF 10
DO 3
RT 11:00pm
B1 10
BD 0
B2 0
RR 10
BF OFF
5810 Katalox Light (kat1)
DF gal
RF dF2b
CT Fd
C 24
H 20
RS SF
SF 10
DO 3
RT 11:30pm
B1 10
BD 60
B2 5
RR 10
BF 5
7000sxt Katalox Light (kat2)
DF gal
RF dF2b
CT Fd
C 24
H 20
RS SF
SF 10
DO 3
RT 1:10am
B1 10
BD 60
B2 5
RR 10
BF 5
7000sxt Centaur Carbon
DF gal
RF Fltr
CT tc
DO 2
RT 2:50am
BW 10
RR 10
7000sxt Fine Mesh Nelsen resin
DF gal
RF dF2b
CT Fd
C 31 (40 suggested by third party)
H 20
RS SF
SF 20
DO 3
RT 3:20am
B1 10
BD 60
B2 5
RR 10
BF 21
Complete by 5:10am

7000 Calcite  10x44 standard (topped off May 2018)
5810 Katalox Light (kat1) 10x44, Vortech, added April 2017
7000 Katalox Light (kat2) 10x44 Vortech, (media replaced June 2018)
7000 Centaur Carbon 10x44 Vortech (media replaced June 2018)
7000 Fine Mesh Nelsen resin 10x44 Vortech, (media replaced June 2018)
Issues:
Kat 2 operating without distributor
Regeneration times overlapping
Reverse flow may have been occurring from irrigation and/or softener bypass, installed two Valterra 200-C10 PVC Swing/Spring Combination Check Valves
Flow meters:
calcite tank- no flow meter
kat 1 tank- 5810 reads volume (VU), but no no peak flow (PF)
kat 2 tank- shows 3.2 PF, but no VU
carbon- no flow meter
resin- 2.2 PF, but no VU
Condition:
As of July 8, 2018 water clear

Experiencing intermittent less than 1ppm iron.
Adding Katalox Light did not solve problem.
Recently converted Katalox Light to Pot Perm regeneration, but still experiencing occasional  less than 1 ppm iron.
No obvious problems.
I'll have to dedicate most of a day to trying to solve this problem, again.

One cubic foot of Katalox light with 10x44 vortech tank with 5810 Fleck valve installed yesterday.
Brine draw version of the 5810 valve was delivered with piston for brine draw. As the system was installed before I discovered this the solution was to set BD to one and BF to zero and plug brine port as possible. Brine port plug to be delivered.
Tank was installed after calcite and before MTM. All tanks were manually regenerated. Water looks clear. Will need to monitor seals and spacers for chlorine degradation (calcite, Katalox, MTM, and carbon tanks could all be at risk).

Manually regenerated all tanks last night and today water was B in clarity/color. I have no ideas.

Water B+ this morning. Not ideal. Manually regenerating all tanks.