4
SPECIFICATIONS
Model
ESS1102XR32
Model Code
ST31
Rated Softening Capacity (grains @ lb. salt dose)
13,400 @ 2.9
28,600 @ 9.2
34,400 @ 15.6
Rated Efficiency (grains / lb. @ minimum salt dose)
4,620 @ 2.9
Water Used During Regeneration @ Minimum Salt Dose
56.2 gal. / 1,000 grains
Amount of High Capacity Resin
51 lbs. (0.98 cu. ft.)
Resin Tank Nominal Size (dia. x height)
10 x 47 in.
Service Flow Rate
8.3 gpm
Pressure Drop at Rated Service Flow
14.9 psig
Intermittent Flow @ 15 psi
p
8.3 gpm
Intermittent Flow @ 30 psi
p
12.2 gpm
Water Supply Maximum Hardness
110 gpg
Water Supply Maximum Clear Water Iron
¢
5 ppm
Min. - Max. Water Supply Pressure
u
20 - 125 psi
Min. - Max. Water Supply Temperature
40 - 120 °F
Minimum Water Supply Flow Rate
3 gpm
Max Drain Flow Rate
2.2 gpm
p
Intermittent flow rate does not represent the maximum service flow rate used
for determining the unit’s rated capacity and efficiency. Continuous operation at
flow rates greater than the service flow rate may affect capacity and efficiency
performance.
¢
Capacity to remove clear water iron is substantiated by independent laboratory
test data. State of Wisconsin requires additional treatment if water supply con-
tains greater than 5 ppm clear water iron.
u
Canada working pressure limits: 1.4 - 7.0 kg/cm².
This system, when containing EcoWater Systems resin part number 0502272 in the
amount listed above, conforms to NSF/ANSI 44 for the specific performance claims
as verified and substantiated by test data.
This softener has a rated softener efficiency of not less than 3,350 grains of total hardness exchange per pound of
salt (based on sodium chloride). This softener has been proven to deliver soft water for at least ten continuous min-
utes at the rated service flow rate. The rated salt efficiency is measured by laboratory tests described in NSF/ANSI
Standard 44. These tests represent the maximum possible efficiency that the system can achieve. Operational effi-
ciency is the actual efficiency after the system has been installed. It is typically less than the rated efficiency, due to
individual application factors including water hardness, water usage, and other contaminants that reduce a softener's
capacity.
ECOWATER
S Y S T E M S
Specifications & Performance Claims