45
ECOWATER
S Y S T E M S
Specifications & Performance Claims
These models are efficiency rated. The efficiency rating is valid only at the minimum salt dose and the service flow rate.
The softeners have a demand initiated regeneration (D.I.R) feature that complies with specific performance specifications
intended to minimize the amount of regenerant brine and water used in their operation.
These softeners have a rated softener efficiency of not less than 3,350 grains of total hardness exchange per pound of salt
(based on sodium chloride) and shall not deliver more salt than their listed rating or be operated at a sustained maximum
service flow rate greater than their listed rating. These softeners have been proven to deliver soft water for at least ten
continuous minutes 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
efficiency 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.
While testing was performed under standard laboratory conditions, actual performance of the system may vary based on
local water conditions.
PERFORMANCE CLAIMS
Contaminant
Influent
Challenge Level
Maximum Allowable
Product Water Level
Barium
10 ±10% mg/L
2.0 mg/L
Radium 226/228
25 pCi/L
5 pCi/L
Models ERR 3500R20, ERR 3502R30 and ERR 3502R50 have been tested according to NSF/ANSI Standard 42 for
the reduction of chlorine taste and odor. The concentration of the indicated substance in water entering the system
was reduced to a concentration less than or equal to the permissible limit for water leaving the system, as specified in
NSF/ANSI Standard 42.
Model
ERR 3500R20
Model
ERR 3502R30
Model
ERR 3502R50
0.50 ppm
0.75 ppm
Rated Capacity at Chlorine Concentration** of: 1.0 ppm
1.5 ppm
2.0 ppm
2,920,000 gal.*
1,950,000 gal.*
1,460,000 gal.*
950,000 gal.*
730,000 gal.
*
3,650,000 gal.*
2,440,000 gal.*
1,820,000 gal.*
1,910,000 gal.*
912,000 gal.*
4,867,000 gal.*
3,250,000 gal.*
2,433,000 gal.*
1,583,000 gal.*
1,217,000 gal.*
*
From independent laboratory test data.
**
Typical residential chlorine concentration is 0.5 to 1.0 ppm.
Test parameters include: pH = 7.5 ±0.5, flow rate = 7.5 gpm,
and dynamic pressure = 35 ±5 psig.
PERFORMANCE CLAIMS
Substance
Influent
Challenge Level
Reduction
Requirement
Chlorine
2.0 ±10% mg/L
50%
MODEL ERRC 3502R50 PERFORMANCE CLAIM
Substance
Influent
Challenge Level
Reduction Requirement
Chloramines
3 mg/L
>70% @ 10 gpm for 34,000 gal.***
***
From manufacturer’s test data.
Model ERRC 3502R50 has not been tested or certified by NSF International or the Water Quality Association.
