Waterdrop WD-K19-S Countertop Reverse Osmosis Water Dispenser Instructions
- June 17, 2024
- Waterdrop
Table of Contents
Countertop Reverse Osmosis Water Dispenser
Model: WD-K19-S / WD-K19-H
SGS Tested and Certified
Testing performed under NSF/ANSI standards 42 & 53 & 58. This system has been tested according to NSF /ANSI 42 & 53 & 58 for the reduction of substances listed below. The concentration of the indicated substances in water entering the system was reduced to a concentration less than or equal to the permittable limit for the water leaving the filter as specified in NSF/ANSI 42 & 53 & 58.
NSF/ANSI Standard 42 – Aesthetic Effects
Substance| Influent Challenge
Concentration| Percent
Reduction| Product Water
Concentration| U.S. EPA Level/NSF
Maximum Permissible
Product Water
Concentration
---|---|---|---|---
Dissociate chlorine residue| 1.92 ppm| >99.47%| <0.01 ppm| 5(:)°/0
Chloramine| 3.00 ppm| >99.66%| <0.01 ppm| a.80%
NSF/ANSI Standard 53&58 — Health Effects
Substance| Influent Challenge
Concentration| Percent
Reduction| Product Water
Concentration| U.S. EPA Level/NSF
Maximum Permissible
Product Water
Concentration
Total dissolved solids (TDS)| 1090 ppm| 97.%| 29 ppm| a75%
Nitrate (as N)| 34.940 ppm| 92.%| 2.83 ppm| 10 ppm
Fluoride| 9.6 ppm| 98.%| 0.20 ppm| 1.5 ppm
Arsenic (As)| 0.27464 ppm| 100.%| 0.00124 ppm| 0.01 ppm
Chromium-VI| 0.155 ppm| >97.41%| <0.004 ppm| 0.1 ppm
Lead (Pb)| 0.12822 ppm| >99.94%| <0.00007 ppm| 0.005 ppm
Copper (Cu)| 4.05513 ppm| >99.99%| <0.00009 ppm| 1.3 ppm
Microbial reduction testing
Substance| Influent Challenge
Concentration| Percent
Reduction| Product Water
Concentration| U.S. EPA Level/NSF
Maximum Permissible
Product Water
Concentration
Total coliforms| 3.2x 103| >99.99%| <1 CFU/100mL| 100.%
NSF/ANSI StandardNSF/ANSI Standard 53 — Health Effects — Volatile organic
chemicals (VOCs) included by surrogate testing
Substance| Influent Challenge
Concentration (mg/L)| Percent
Reduction| Product Water
Concentration (mg/L)| U.S. EPA Level/NSF
Maximum Permissible
Product Water
Concentration
chloroform| 0.2698| 100.%| 0.0002| 95%
Antibiotic reduction testing
Substance| Influent Challenge
Concentration (μg/L)| Percent
Reduction| Product Water
Concentration (μg/L)
---|---|---|---
Ampicillin| 10.154| 99.95%| 0.005
Amoxicillin| 9.657| 99.87%| 0.013
Tetracycline| 11.405| 99.95%| 0.006
Oxytetracycline| 10.762| 99.91%| 0.01
Chlorotetracy cline| 10.284| >99.95%| <0.005
Sulfadiazine| 9.972| 99.83%| 0.017
Sulfamethazine| 10.182| 99.83%| 0.017
Roxithromycin| 9.772| 97.43%| 0.251
Norfloxacin| 9.948| >99.94%| <0.005
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