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1. 

Prime filter by placing the straw in water so 

that the intake nozzle is fully immersed. Let 

sit for 20 seconds.

2. 

Open mouthpiece cap, taking care not to 

touch the mouthpiece.

3. 

While intake nozzle is fully immersed, place 

mouth on mouthpiece and suck to draw 

water through filter.

To attach to most standard water bottles, screw 

mouth of bottle into the Intake Nozzle/Bottle 

Attachment.

NOTE: Drinking through a filtration straw may 

require more suction than drinking through a 

traditional drinking straw. If you are unable to draw 

water through the straw, the filter may be clogged 

by air bubbles or previously filtered particles. 

The 3-stage filtration process will become clogged 

during normal use especially if the Personal Water 

Filtration Straw is used to filter muddy or silty 

water. See FOR BEST RESULTS section for more 

information.

 

-

Use the cleanest, clearest water available.

 

-

Filtering silty, cloudy, muddy, or glacial 

stream water or tea-colored water that 

contains visible tannins can clog the filter 

faster.

 

-

Blow air through the mouthpiece (in opposite 

direction of normal water flow) to remove 

potential air bubbles.

 

-

Before taking your Personal Water Filtration 

Straw camping, backpacking, or on a trip, test 

it in a safe environment to make sure your 

Personal Water Filtration Straw is working 

properly.

The Personal Water Filtration Straw is designed 

to filter up to 1,000 gallons. Actual gallons filtered 

before needing replacement may be less. 

Inability to draw water through the Filtration Straw 

may indicate that the product has reached the end 

of its lifecycle.

Read these usage and safety instructions carefully 

before using the Personal Water Filtration Straw. 

Failure to comply with the instructions and 

warnings contained in this booklet may result in 

adverse performance of and/or damage to the 

device. 

Cascade Mountain Tech™ shall not be liable for 

any damages arising out of or as a result of 

the use of the Personal Water Filtration Straw 

for any purpose other than that for which it is 

clearly intended. By using the Personal Water 

Filtration Straw, you tacitly agree to the terms and 

conditions of these safety instructions and the 

disclaimer.

The Personal Water Filtration Straw should only be 

used for filtering water. The quality of the filtered 

water is not guaranteed if the product is subjected 

to conditions other than those encountered during 

its normal use.

Independently Tested

Cascade Mountain Tech filters are rigorously 

tested by independent labs to meet protocols 

established by the US Environmental Protection 

Agency (EPA) and NSF International/ANSI.

 

-

Membrane Microfilter pore size – 0.2 micron

 

-

Meets US EPA & NSF P231 standards for the 

removal of bacteria and parasites

C

A

B

D

1

2

3

Dir

ection of W

ater Flo

w

Mouthpiece Cap

Mouthpiece

3-Stage Filtration Process

Sediment Filter

Hollow Fiber Membrane

Activated Carbon

Intake Nozzle/Bottle Attachment

A
B

C

D

3

2

1

USE

FOR BEST RESULTS

DISCLAIMER

PARTS OF FILTRATION STRAW

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