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:
  1. Shower master filter with standard shower head (SR-1)
  2. Two-way Diverter (SA-3)
  3. Standard shower head (S-1) with 2.5 GPM Restrictor
  4. Faucet hose/shower arm assembly
  5. Chem-Tech Pulsafeeder Model 100/020 with 15 gallon tank
  6. Collecting pan
  7. 10% sodium hydro chlorite solution
  8. Thermometer, 32-125 F
  9. 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 showerhead (SR-1) was attached to the two-way diverter's in-line port and a standard showerhead (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 showerheads for gathering samples.

Procedure:
  1. The output water was adjusted to 103 - 105F
  2. The chlorine PPM (parts per million) content from the non-filtered water was adjusted to 2.2-2.4 ppm
  3. The output flow for both Shower Master filter w/standard shower head and the standard showerhead w/no filter was 2.5 gallons
  4. Samples were drawn form a 2.5 collecting pan for both samplings
  5. Parts per million of free chlorine was determined by use of Lamotte Chemical Chlorine test kit, Model DT-DR, Direct Reading Titrator
  6. Initially, 103-105F 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 82-84F. At the end of each testing period, the system was shut down to allow for a final sampling again at the 103-105F temperature
Results: Due to limitations of the testing apparatus two groups of data appeared.
  1. Normal showering temperature data at 103-105F yielded a 96 - 100% removal of chlorine.
  2. Cooler than normal showering temperature data set at 82-84F yielded a 83-91% removal of chlorine.
Conclusion: The percent of chlorine removal is directly related to temperature. At normal showering temperatures, 103-105F the Sprite Shower Master removed from 96-100% of the free 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