38
PROGRAMMING THE 700 FOR 5-CYCLE FILTER APPLICATIONS
Rev E
demand: multiply the gallons of water used per day (300) by the ppm of iron
content (10) = 3000 ppm of daily capacity usage.
Now take the system capacity (10,000), divided by the daily demand (3,000) =
3.3 days of capacity. Since you will run out of capacity before the beginning of
the fourth day, the proper setting for days between regeneration is 3 days.
For example:
4 people x 75 gals per person = 300 gallons used per day.
10 ppm iron x 300 gal/day = 3000 ppm/day
10,000 ppm capacity
3000 ppm/day = 3.3 days of total capacity
Solution = regenerate every 3 days.
Volume/Demand Regeneration Setting
To set a 760 demand system for iron removal you must:
1. Know your media capacity. Generally, one cubic foot of magnesium
greensand can remove 10,000 ppm of iron.
2. Know the iron concentration in your water.
To have your system regenerate on demand, set your system’s capacity (P7)
to the appropriate factor. On the 760, it will read Kg, but you will actually be
working in ppm of iron.
1. If your system is one cubic foot, set the capacity to "10" kg, meaning
10,000. For two cubic feet, set the capacity to "20" kg.
2. Set your hardness to the level of ppm iron in your water. If you have 3
ppm of iron, set the 760 control to "3".
3. The control will calculate the remaining volume capacity in gallons (m
3
)
and count down to regeneration.
Time & Day
Regen Time & Day
Salt Amount
SU MO TU
WE TH
FR
SA DAYS
Capacity
Hardness
KG
Time & Day
Regen Time & Day
Salt Amount
SU MO TU
WE TH
FR
SA DAYS
Capacity
Hardness