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FIG. 5A

ENGLISH - Capacity: 1-20 L with a 2.5 mg/L dose

Instruction Manual

OPERATING INSTRUCTIONS

STEP 1. MAKE SALT WATER

A.

  Fill container with water to be treated. (FIG.3A)

B.

   Note volume of water container in liters:

 

 

1 LITER = 1 QUART = 32 OZ

 

 

2 LITER = 2 QUARTS = 64 OZ

 

 

5 LITER = 1.3 GALLON = 169 OZ

 

 

10 LITER = 2.6 GALLONS = 338 OZ

 

 

20 LITER = 5.3 GALLONS = 676 OZ

C.

 Press the activation button to select the volume of  

 

water you want to treat from 1-20 liters. Continue   

 

pushing the button multiple times in succession until your  

 

desired volume is illuminated by a green light. 

WARNING!  

Do not use seawater. The H2gO

®

 Purifier does not 

make drinkable water out of salty or brackish water. Choose the 
cleanest water available. Avoid water sources with high levels of 
chemical contamination, such as mine tailing ponds, and 
sources near large agricultural operations. The H2gO

®

 Purifier 

does not effectively reduce heavy metals or high levels of 
chemical contamination. Know how to effectively use this 
product.

FIG. 3A

FIG. 4A

FIG. 4B

FIG. 1A

FIG. 1B

SALT  FILL

OPERATING INSTRUCTIONS

STEP 2. ADD SALT WATER TO DEVICE 

NOTE:  

Preparing reserve salt supplies can be done at home before 

use in the field, as well as charging your H2gO

®

 Purifier.

A.

  Remove one salt plug from the top of the H2gO

®

 Purifier and fill  

  the chamber with salt for a reserve supply. (FIG. 1A)  Replace  
  the salt plug.

B.

 Fill the second salt chamber with salt and replace the salt  

 plug.

C.

 Re

move the cap from the salt water bottle and fill the salt  

  water bottle to the salt fill line with salt. (FIG. 1B)

D.

 Add water to the salt water bottle until full. This water can  

  be the same as the water you will be treating.

E.

 Put the cap back on the salt water bottle and shake the salt  

  water bottle until all of the salt is dissolved.

NOTE:  

Each of the salt chambers in the H2gO

®

 Purifier holds the 

correct amount of salt to fill the salt water bottle to the salt fill line. 

The salt in these chambers can be used to make the salt water in the 

bottle while in the field. The salt water bottle holds enough salt water 

for about 10 applications. If the salt water bottle is lost, you may mix 
salt water solution directly in the device reaction chamber (see 
Step 2). 

OPERATING INSTRUCTIONS

STEP 3. SELECT AMOUNT OF WATER TO BE TREATED

A

.  Once the desired volume light is lit, press and hold the activation 

  button for 2 seconds or until the salt water in the cell chamber begins  
  to bubble. As the process begins, the green light will blink quickly 
 3 times and then turn solid.

B

.  When the bubbles stop, the reaction is complete, and the   

  green light will turn off.

NOTE:

  When treating larger volumes of water, the disinfectant will be more 

concentrated and will take longer to generate in the device. The reaction 
time to generate disinfectant can vary anywhere from about 15 seconds 
(1 liter) to about 5 minutes (20 liters), depending on the volume of water 
you are treating, the temperature and concentration of the salt water, and 
other factors. 

WARNING!  

Do not touch your eyes while using the purifier. The H2gO

®

 

Purifier creates a chemical oxidant like chlorine bleach that can damage 

your eyes. The same oxidant can also irritate skin and permanently stain 
clothing. Keep at least 12 inches (30 cm) away from your face and 
clothing during this step and while pouring oxidant into the water 

container. Rinse purifier and hands after use. Also, see 

First Aid.

OPERATING INSTRUCTIONS

STEP 4. MAKE DISINFECTANT

A.

  Pour the oxidant from the cell chamber into the container of 

  water. The pour spouts leading from the cell chamber allow 
  the oxidant to be poured out either from the left or right.  
  (FIG. 4A)  A single dose will inactivate bacteria and viruses.

B. 

If treating for Giardia or Cryptosporidium in clean-looking  

  water, add a second dose to the water. (Repeat Steps 3 and 4
  to generate a second batch of oxidant and then add it to the  

  water container, or begin by selecting a volume on the purifier  

  display that is twice the volume of the water you wish to treat.)

C. 

If the water is cloudy or colored, then Cryptosporidium

  requires a total of 4 doses. (i.e. Giardia requires 2 doses,  
  regardless of water quality, while Cryptosporidium requires 2  
  doses in clear waters and 4 doses in dirty waters. )

D. 

Pour some treated water onto cap threads. (FIG 4B)

E. 

Tightly reattach the lid and shake thoroughly.

NOTE:

  I

f the water has previously been filtered with a microfilter 

(typically  0.2  micron  rating),  then  this  filter  will  be  effective  at 

immediately removing both Giardia and Cryptosporidium and only 
a single dose is needed to inactivate bacteria and viruses.

OPERATING INSTRUCTIONS

STEP 5. ADD DISINFECTANT TO WATER

A.

  Wait 30 minutes after appropriate dosing (see Step 5) to inactivate  

  bacteria, viruses, and Giardia

.*

B. 

Wait 4 hours after appropriate dosing (see Step 5) to inactivate  

 Cryptosporidium

.*

C. 

If desired, safety indicator strips may be used to verify that there 

  is a free chlorine residual at the end of the wait period to ensure
  that the water is safe to drink. (See "Optional Test Strips" on next  
 page.)

NOTE:

  

If a microfilter (typically 0.2 micron rating) has first been used to 

treat the water, then the maximum wait time is only 15 minutes.

*Dosing requirements and wait times are based on World Health 
Organization (WHO) Household Water Treatment & Safe Storage Guidelines. 

The required inactivation levels for specific bacteria, viruses, and protozoan 

cysts are described in WHO's 

Evaluating Water Treatment Options: 

Health-based targets and microbiological performance specifications.

OPERATING INSTRUCTIONS

STEP 6. WAIT

A.

  Press and hold the activation button for 3 seconds to turn the  

  flashlight on.

B.

  To turn the light off, press the activation button again.

NOTE:

  All other lights on the H2gO

®

 Purifier must be off before the flashlight 

can  be  turned  on. The  flashlight  will  automatically  turn  off  in  about  15 

minutes.

OPERATING INSTRUCTIONS

FLASHLIGHT OPERATION

A. 

  After the required wait time described in Step 6, pour the  

  treated water over the test strip pad. (Do not insert the test  
  strip into the treated water.) Hold the test strip level for 15  
  seconds. (Do not shake excess water from the strip.) 

B.

  Compare the free chlorine pad on the end of the strip to the  

  color chart on the test strip bottle. 

C.

  An "OK" or "OK+" indication means the water is safe to drink.

D.   

If the test strip indicates "Too Low", add another dose of  

  disinfectant and wait the time specified in Step 5.  

E.

  Repeat until a residual is present at the end of the wait time.

FIG. 4A

FIG. 2A

WARNING!  

Wait the full 

appropriate treatment time. Do 
not add more water to the 
container after the treatment 
process. Adding water after this 
step will dilute the strength of the 
treatment soluiton and increase 
the risk of contamination. Do not 
add drink mixes to the water 
before treatment time is 
complete or the treatment 
process may stop. To prevent 
drinking any contaminated water, 
the threads on the container and 
the cap must be rinsed with 
treated water.

4

hrs

30

min

A.  

Remove the rubber plug from the reaction chamber of the device. Note  

  that the rubber plug can be bent over the top of the purifier and the tip  

  of the plug inserted under the little nib in the lanyard opening  
  so that the plug stays out of the way during operation.

B.

  Lay t

he purifier on a flat surface with the controls facing up.

C.

 Pour salt water from the salt water bottle into the reaction 

  chamber until the chamber is nearly full of salt water. (FIG. 2A)

NOTE:  

If the salt water bottle is not available, a pinch of salt (roughly ½ 

gram or 1/16 tsp) can be added directly into the reaction chamber, 

followed by enough water to fill the chamber. Allow the salt to dissolve 

before operating the device.

USE OF OPTIONAL TEST STRIPS

NOTE:

  

The oxidant produced by the H2gO

®

 Purifier provides a chlorine residual that keeps stored water safe to drink. The H2gO

®

 

Purifier is designed to treat the vast majority of waters (including cloudy or colored waters) to World Health Organization standards 

with the dosing protocol and wait times described in Steps 4 and 5. However, excessively challenging waters may contain 

substances that can consume the disinfectant before it has time to inactivate microorganisms in the water. While use of safety 

indicator strips is not required, they can provide a measure of certainty that the device is being used correctly and that the water 

is safe to drink, a benefit not offered by any other treatment technology, including filtration or ultraviolet (UV) light. 

WARNING! 

Do not wait more than 15 seconds to read the strip or the color may fade. Do not reuse the test strips if they 

have already colorized. 

®

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