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Removing chlorine in hot water shower filter with KDF process media.

Lab Test Results for Chlorine Removal in Hot Water Shower Filter with KDF Process Media


Lab Test Results for Bacteria from Sprite Industries

Shower Master (SR-1) 5,000 gallon test results:

LR: 81590 Utilizing 18 oz of KDF® 55D

Purpose:

To demonstrate free chlorine removal by a standard Shower Master (SR-1) shower filter over a minimum duration of 5000 gallons.

Equipment:

  • Shower master filter with standard shower head (SR-1)
  • Two-way Diverter (SA-3)
  • Standard shower head (S-1) with 2.5 GPM Restrictor
  • Faucet hose/shower arm assembly
  • Chem-Tech Pulsafeeder Model 100/020 with 15 gallon tank
  • Collecting pan
  • 10% sodium hydro chlorite solution
  • Thermometer, 32-125° F
  • Chlorine test kit/Titratin (Lamotte DT-DR)

Set Up:

The faucet hose/shower arm assembly was constructed so as to attach to the hot and cold faucet at the input and the diverter (SA-3) at the output.

A Shower Master filter with a standard shower head (SR-1) was attached to the two-way diverter's in-line port and a standard shower head (S-1) to its angled port. A Chem-Tek pulsafeeder model 100/030 injected 10% hypo chlorite solution via a tee fitting, midway at the faucet hose. A collecting pan with thermometer was placed under shower heads for gathering samples.

Procedure:

  • The output water was adjusted to 103 - 105°F
  • The chlorine PPM (parts per million) content from the non-filtered water was adjusted to 2.2-2.4 ppm
  • The output flow for both Shower Master filter w/standard shower head and the standard shower head w/no filter was 2.5 gallons
  • Samples were drawn form a 2.5 collecting pan for both samplings
  • Parts per million of free chlorine was determined by use of Lamotte Chemical Chlorine test kit, Model DT-DR, Direct Reading Titrator
  • Initially, 103-105°F temperature water was sampled at the start of the days test run. Within a 30 minute period the hot water heater because exhausted. The water temperature lowered and stabilized at approximately 82-84°F. At the end of each testing period, the system was shut down to allow for a final sampling again at the 103-105°F temperature

Results:

Due to limitations of the testing apparatus two groups of data appeared.

  • Normal showering temperature data at 103-105°F yielded a 96 - 100% removal of chlorine.
  • Cooler than normal showering temperature data set at 82-84°F yielded a 83-91% removal of chlorine.

Conclusion:

The percent of chlorine removal is directly related to temperature. At normal showering temperatures, 103-105°F the Sprite Shower Master removed from 96-100% of the free chlorine.

Results:

Due to limitations of the testing apparatus two groups of data appeared.

  • Normal showering temperature data at 103-105°F yielded a 96 - 100% removal of chlorine.
  • Cooler than normal showering temperature data set at 82-84°F yielded a 83-91% removal of chlorine.
Date Time PPM In PPM Out Temp °F % Removal Total Gallons
7/2/90 2:30 1.5 0.0 105.0 100.0  
  2:35 2.8 0.1 104.0 96.4 12.5
  3:00 1.8 0.2 84.0 91.7 75.0
  3:05 2.4 0.2 84.0 91.7 87.5
  3:20 2.4 0.2 84.0 91.7 137.5
  3:35 2.2 0.2 84.0 90.9 162.5
  4:00 2.2 0.2 84.0 90.9 225.0
  4:15 2.6 0.3 84.0 88.5 262.5
OFF 4:35 2.2 0.3 84.0 86.4 312.5
  6:15 1.9 0.0 104.0 100.0  
  6:20 2.0 0.0 104.0 100.0  
7/9/90 12:30 2.0 0.0 104.0 100.0  
  12:40 2.0 0.0 104.0 100.0 337.5
  1:30 2.2 0.1 84.0 95.5 462.5
  2:30 2.4 0.3 84.0 87.5 612.5
  3:30 2.2 0.3 84.0 86.4 762.5
OFF 4:30 1.8 0.2 83.0 88.9 912.5
  5:00 2.0 0.3 103.0 85.0  
7/25/90 2:30 1.6 0.0 104.0 100.0  
  2:45 1.6 0.2 83.5 87.5 950.0
  2:50 2.4 0.4 83.0 83.3 965.0
OFF 5:15 2.4 0.4 83.5 83.3 1325.0
  6:20 2.2 0.0 104.0 100.0  
7/27/90 12:45 1.8 0.0 104.0 100.0  
  12:50 2.2 0.2 87.0 93.2 1337.0
  2:05 2.2 0.2 84.0 93.2 1525.0
  3:15 2.0 0.4 82.0 80.0 1700.0
OFF 3:30 2.2 0.4 80.0 81.8 1712.5
  4:04 1.6 0.0 104.0 100.0  
7/28/90 12:10 2.5 0.1 104.0 96.0  
  1:15 1.8 0.3 84.0 83.3 1875.0
  2:15 2.4 0.5 84.0 79.2 2025.0
OFF 4:50 2.4 0.5 84.0 79.2 2412.5
  5:30 2.6 0.2 105.0 94.2  
  5:35 2.5 0.2 105.0 94.0  
8/14/90 1:25 2.6 0.0 105.0 100.0  
  1:45 2.6 0.2 96.0 92.3 2462.5
  3:20 2.6 0.3 84.0 88.5 2700.0
8/16/00 7:50 2.0 0.0 105.0 100.0  
  7:55 2.4 0.2 88.0 91.7 2712.5
  9:10 2.4 0.3 82.0 87.5 2900.0
  10:20 2.6 0.4 81.0 84.6 3075.0
  12:15 2.4 0.2 82.0 91.7 3362.5
  1:30 2.3 0.3 82.0 87.0 3550.0
  3:15 2.4 0.4 82.0 83.3 3812.5
OFF 5:00 2.2 0.3 82.0 86.4 4075.0
  6:45 2.6 0.1 105.0 96.2  
  6:50 2.6 0.1 104.0 96.2  
8/17/90 7:10 2.4 0.0 105.0 100.0  
  9:20 2.4 0.3 83.0 87.5 4400.0
  11:25 2.6 0.4 83.0 84.6 4712.5
OFF 2:05 2.2 0.2 83.0 90.9 5112.5
  4:15 2.5 0.0 105.0 100.0

Submitted by Sprite Industries, Fullerton CA

To get hard copies of this and other lab reports email KDF Fluid Treatment, Inc. KDF Fluid Treatment an NSF-approved witness test lab for shower filters.