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Preconditioning the System 

(When New or After Extended Storage)

1. 

Prime - Fill the bottle with water to the fill line (indicated on outside of bottle). Insert 

cartridge/bottle cap into bottle. Turn bottle cap clockwise until tight. Squeeze bottle 

firmly with both hands to start water flow. Repeat until two bottles of water have 

been run through the system. While priming, keep bottle as full as possible. Flow 

rate will improve once the system is fully primed.

2. 

Again, fill the bottle with water to the fill line. Insert cartridge/bottle cap into bottle. 

Turn bottle cap clockwise until tight. Allow to sit for two hours prior to use.

Normal Operation

 

(After Preconditioning)

1. 

Fill the bottle with water to the fill line (Figure 4).  

        Remember, the clearer the water, the longer the Cyst and 

        Prefilter will last.

2. 

Insert  cartridge/bottle  cap  into  bottle.  Turn  bottle  cap                                   

clockwise until tight.

3. 

Flip open mouth piece. Note: The mouth piece has two 

positions. Pull the mouth piece up to open. Push it down to 

close (Figure 5).

 Do not remove mouth piece.

4. 

Hold the bottle upright when drinking. Squeeze and sip 

using continuous pressure.

Important Notes

1. 

To be purified, water must pass through the ViruStat® cartridge. The flow rate is 

slower than an ordinary sports water bottle to ensure complete purification.

2. 

New and stored units must be preconditioned. See “Preconditioning the System” 

section.

3. 

Squeeze and sip using continuous pressure. Do not pump. You will notice a 2-4 

second pause after squeezing, like using a long straw, before water flows.

4. 

Always hold bottle upright when drinking. Water will not pass through the cartridge 

if bottle is upside down or at an angle.

Product Set-Up 

(Before First Use)

1. 

Rinse inside of bottle

2. 

IMPORTANT! Flush Prefilter

        Attach Carbon Prefilter to Bottle Cap. Fill bottle with tap water. Install Bottle Cap on

         bottle and tighten. Firmly squeeze bottle with both hands until 1/2 bottle of water has

        been run through the system. 

Remove bottle cap.

3.      Assemble the cartridge

         

Remove the red label from the top of the Virustat® (Figure 2).

         Attach the Cyst Filter to the bottom of the ViruStat® and the

         Prefilter to the bottom of the Cyst Filter. Gently twist each 

         component while pushing it on. Make sure ALL O-rings and

         components are fully seated and assembled. The cartridge must

         be assembled in this way to ensure purification in all water 

         conditions. Firmly twist and push the cartridge into the bottle cap

         (Figure 3).

Figure 3

Figure 2

IMPORTANT!

Remove Safety Seal!

Key Components

Following the U.S. EPA microbiological water purifier test protocols, the MyBottle system’s 

long-lasting, replaceable ViruStat® microbial purification cartridge killed or removed:
• 

99.9999% of waterborne bacteria such as Klebsiella terrigena

• 

99.99% of waterborne viruses* including Poliovirus Type 1* and Type 1 Rotavirus 

Strain SA-11*

• 

99.9% of waterborne protozoa such as Giardia

• 

Bad tastes and odors

ViruStat

Cyst Filter

Carbon

Prefilter

Figure 1

Cushioned

mouth piece

Thank you for choosing the Katadyn MyBottle 

Personal Water Purification System

This personal water purification system has been proven to render water microbiologically safe for 

drinking. Intended only for short-term, limited or emergency use (not intended for long-term use).

Directions For Use

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

Katadyn MyBottle personal water purification systems eliminate the need to carry or locate safe drink-

ing water, whether you are hiking, traveling or in an emergency situation. Only Katadyn MyBottle 

personal water bottle purifiers place the advanced technology of a microbial purification cartridge 

into a standard water bottle. The result is a personal hydration system that provides antimicrobial 

protection against cysts, bacteria and viruses*.

When To Use

Katadyn MyBottle personal water bottle purifiers are designed for use with untreated fresh water 

sources, such as lakes, rivers and streams. They also provide protection against waterborne patho-

gens that may still be present in the tap water of many foreign countries. MyBottle systems are also 

effective in emergencies, such as floods, hurricanes and earthquakes, or any time service from a 

municipal water treatment plant fails.
Katadyn MyBottle personal water bottle purifiers provide a convenient alternative to pump-style water 

purifiers. Because they are designed for personal use, MyBottle systems are not suitable for situations 

when large volumes of water must be treated.

How They Work

Katadyn MyBottle personal water purification systems utilize a multi-stage, modular system. At the 

heart of the system is the ViruStat® microbial purification cartridge. The ViruStat® uses PentaPure 

penta-iodide resin to kill 99.9999% of waterborne bacteria, including Klebsiella terrigena and 

99.99% of viruses*, such as Poliovirus Type 1* and Rotavirus Strain SA-11*. The ViruStat® employs 

a patented ion-release technology that dramatically reduces residual iodine, and a special layer of 

coconut-carbon that further minimizes any residue. The ViruStat® cartridge is preceded by a replace-

able 1-micron filter that removes 99.9% of pathogenic cysts, such as Giardia. A Prefilter is installed 

below the Cyst filter to remove sediment and organic contaminants.
Please carefully read the following instructions for maximum performance of your Katadyn MyBottle 

personal water purification system. Failure to follow the instructions found in this manual may result 

in unsafe drinking water.

Figure 4

Fill Line

Straw

Figure 5

Bottle cap with 

integral carry loop

Bottle

8018905_0_January_Approved_Purifier_Manual.indd   1

1/17/2013   12:07:50 PM

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