Platypus® FAQs

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Hydration

Do any of your water storage products contain BPA, BPS, or use polycarbonate?

No. All Platypus hydration products are 100% BPA- and BPS-free, and are made with durable urethane and food-grade, taste-free polyethylene interiors.

How do I clean my Platypus bottle or reservoir?

Use hot, soapy water and rinse thoroughly with hot water. For tough cleaning jobs, add 1/4 cup of baking soda to 3/4 cup of water per liter volume of your bottle or reservoir and shake for 30 seconds. Add 1/4 cup lemon juice, shake 10 seconds, and vent by loosening cap away from face. Repeat shaking and venting three times. Expel as much air as possible, cap bottle, and allow to soak 20 minutes. Rinse three times with hot water. Caution: When adding lemon juice to baking soda, effervescence occurs and will cause pressure to build in a capped Platypus product.

How do I dry my Platypus® bottle or reservoir?

Platypus bottles can be dried by blowing a little air into them to expand them and letting them stand uncapped until the water evaporates. Hang Hoser™ reservoirs from their carry loop to dry. Drying Big Zip™ reservoirs is easy, with a dishtowel through the large opening. Then prop them open with the SlideLock slider and let them air dry. Another great way to dry all reservoirs and bottles is with a plastic bag dryer, widely available at kitchen supply stores and numerous online retailers.

Can I put other beverages in my Platypus bottle or reservoir?

You can put a variety of beverages in your Platypus bottle or reservoir. Just make sure you clean it thoroughly after each use to prevent bacteria from growing in the reservoir and/or tube.

How do I disinfect my Platypus bottle or reservoir?

To disinfect, fill the reservoir or bottle with a solution of unscented household bleach and water at a concentration of 2-5 drops per liter of water. Close and mix for 10 seconds. Fill hoses and bite valves by squeezing bite valve, being careful to keep valve over sink. Leave filled overnight. Rinse thoroughly and air dry.

For a more planet-friendly alternative, use a chlorine-free, hydrogen peroxide-based bleach alternative like Free and Clear™ available from Seventh Generation®.

How do I freeze my Platypus bottle or reservoir? Is it ok to freeze my Platy™ bottle?

A frozen Platy bottle makes a great ice pack and, during the dog days of summer, delivers a steady source of cold, refreshing hydration. Lay it half-full on its side in freezer with all air purged. Do not over-fill. Water expands as it freezes and this can burst your reservoir or bottle.

My new bite valve doesn’t seem to be working. How do I get the water to flow?

Does your hydration system have a shutoff valve? If so, it may be closed. Open it by twisting the bite valve 90 degrees (Clockwise closes it, Counter-clockwise opens it).

If that doesn’t work, you may be biting the valve too hard. The Platy HyperFlow Bite Valve is designed so that you don’t need to bite very hard. If you bite too hard the flow will be completely cut off. With your teeth, compress the valve lightly (only 30% to 50%) and water should flow.

My bite valve comes off too easily. What should I do?

The best way to restore a snug fit between the bite valve and the drinking tube is to remove the bite valve from the drinking tube. Next, cut a small section off the end of the drinking tube. Clean the bite valve and hose with rubbing alcohol, lick the end of the drinking tube and place the bite valve back on the end of the drinking tube. After it dries, there should be an excellent seal.

How do I prevent the water in my hydration system from freezing in cold weather?

Using our Bite Valve & Drink Tube Insulator is an easy solution to deter freezing. Additionally, to help prevent the water in the reservoir from freezing, start off the day with warm or hot water in the reservoir, then pack your extra clothing layers around it. To help keep drink tubes and bite valves from freezing up, sip often to maintain flow, and, after you’ve finished drinking, blow any residual water back into the reservoir. Also, even if you are using the Bite Valve & Drink Tube Insulator, it still helps to keep as much of the drinking tube covered as possible, such as routing it inside a pack, strap, or jacket.

How do I install my Bite Valve Cover?

First, remove your HyperFlow™ bite valve by pulling straight out and off the hose. Then simply slide the cover onto the hose and reattach your bite valve.



Is there a way to filter into my reservoir without removing it from my pack?

Yes. Simply remove the bite valve on your hydration system and connect the end of the hose directly to your filtration system’s outflow port. Using a GravityWorks™ filter system, your reservoir can take the place of the supplied Clean reservoir, creating what is arguably the lightest, most compact and efficient way possible to get water. GravityWorks™ filters are available with direct-to-reservoir and direct-to-bottle adapters for optimum versatility.

The zipper tracks on my old reservoir are hard to close. Can I make it easier?

Yes. Periodically adding a little Vaseline to the tracks will keep them supple and easy to close. Wipe away excess Vaseline to keep it from getting in your water and to prevent it from collecting dirt. In the field, a little lip balm or similar item can do the trick.

My water sloshes around in my reservoir when riding or running. Can I make it stop?

Absolutely. Simply turn your reservoir upside down after filling it. Then simultaneously squeeze the reservoir and the HyperFlow bite valve until all the air is purged. Bye, Bye sloshing.

Can I get small replacement parts for the Quick Disconnect fitting on my Big Zip™ LP reservoir?

E-mail: Cascade Designs Service Center
Tel: 1-800-531-9531

For customers outside North America, please consult our International Distributor listings.

Filtration

Why is backflushing so important with the GravityWorks™ filter?

You must backflush regularly to maintain optimal performance of the filter cartridge. This is especially true in murky or very silty water. Since Hollow Fiber is not a depth-based media like ceramics, you don't clean by removing clogged material from the exterior of the filter media. Instead, you must rinse the particulate that collects on the outside of the Hollow Fiber membranes. Infrequent backflushing makes the particulate harder to remove and more difficult to restore the media’s flow capacity. Based on results from our in-house bio lab, we recommend backflushing anywhere from every 8 liters to after each use, depending on water quality. Our lab has found that the more you backflush the better your flow performance, and the longer life you can expect from your filter cartridge.

The easiest way we have found is to do it every time you fill your Clean reservoir. Just disconnect the hose from the Dirty reservoir and hold the Clean bag high for about 4 seconds. That’s all there is to it.

How does the GravityWorks™ filter do with tea-colored water?

This color of water typically comes from a high concentration of decaying vegetation adjacent to, or in, streams and lakes, resulting in a variety of organic acids. These include, but are not limited to, tannic, fulvic, and humic acids. These acids and the accompanying water conditions are very hard on ALL types of water filters.

Get your water elsewhere if you can. However, if no alternative exists and you are predominantly filtering these waters, we recommend using an MSR® MiniWorks® EX filter. Its ceramic element will collect all these impurities in its outer-most layer, allowing you to scrub away the clogged portion to restore normal flow rates. If you must use a GravityWorks™ filter, backflushing religiously and often will help to minimize the effect of these impurities. When you return home, add 2 drops of unscented household bleach to one liter of water and backflush this solution through the filter. This will help to break up organics that might be clogging the filter while also providing the recommended treatment of your system for long-term storage.

Limited use in these conditions will not have a dramatic effect, but extended use can permanently impair hollow fiber media.

What about freezing?

Once you have used your GravityWorks™ filter and wet the Hollow Fiber filter media, the fibers will still be wet. Therefore, it is important to prevent it from freezing, which can permanently damage the filter media. If you are traveling in areas where you are expecting freezing or near freezing temperatures, bring the filter into your tent, or even your sleeping bag. (Be sure to put the filter in a water tight bag to prevent leaks in your sleeping bag.) If you think your filter may have been damaged by freezing, perform a Filter Test before the next use.

For expedition-style travel where freezing temperatures are the norm, we recommend using the MSR® MiniWorks® filter. Its ceramic/carbon filtration media is better suited to such conditions.

What if the filter takes a hard drop?

We don’t recommend removing the protective bumpers (GravityWorks) or removing the Filter Cartridge from the protective housing (CleanStream). The bumpers on the GravityWorks™ filter are designed to protect the Filter Cartridge from most drops, but direct drops onto cement and any drops above 5 feet (1.5m) should be avoided. If the Filter Cartridge itself is ever dropped after being wetted and outside the protective housing, you should replace it. If you think your filter may have been damaged from a drop, perform a Filter Test before the next use.

Is there a way to filter into my reservoir without removing it from my pack?

Yes. Simply remove the bite valve on your hydration system and connect the end of the hose directly to your filtration system’s outflow port. Using a GravityWorks™ filter system, your reservoir can take the place of the supplied Clean reservoir, creating what is arguably the lightest, most compact and efficient way possible to get water. GravityWorks™ filters are available with direct-to-reservoir and direct-to-bottle adapters for optimum versatility.

Can I get small replacement parts for the Quick Disconnect fittings on my GravityWorks™ Dirty Reservoir?

E-mail: Cascade Designs Service Center
Tel: 1-800-531-9531

For customers outside North America, please consult our International Distributor listings.

Prop 65

What is California Proposition 65?

Proposition 65 is the Safe Drinking Water and Toxic Enforcement Act passed by voters in the State of California in 1986. The act was created to inform people about possible exposure to chemicals known by the State of California to cause cancer, birth defects and/or other reproductive harm.

What are the requirements of Proposition 65?

Proposition 65 requires that the Governor of California maintain and publish a list of harmful chemicals. The list is updated annually and includes chemicals that can be found in solvents, drugs, dyes, food additives, by-products of certain processes, pesticides, and tobacco products.

A chemical is listed if it has been classified as a reproductive toxicant or carcinogen by an "authoritative" organization on the subject. The U.S. Environmental Protection Agency, U.S. Food and Drug Administration, National Institute for Occupational Safety and Health, the National Toxicology Program, and the International Agency for Research on Cancer are considered authoritative for carcinogens. For reproductive toxicants, the authorities are the U.S. Environmental Protection Agency, U.S. Food and Drug Administration, National Institute for Occupational Safety and Health, and International Agency for Research on Cancer. Chemicals will also be listed if they are required to be labeled or identified as a carcinogen or as a reproductive toxicant by an agency of the state or federal government.

Why has Platypus placed a Proposition 65 label on its products?

Any company with ten or more employees operating or selling products within the State of California must comply with the requirements of Proposition 65. To comply, businesses are: (1) prohibited from knowingly discharging listed chemicals into sources of drinking water; and (2) required to provide a "clear and reasonable" warning before knowingly and intentionally exposing anyone to a listed chemical.

A Proposition 65 warning means that the business has evaluated the exposure and has concluded that it exceeds the "no significant risk level,” or that the business is providing a warning based on the presence of a “listed” chemical without actually evaluating the exposure.

Platypus is providing a warning based on our knowledge about the presence of one or more listed chemicals without attempting to evaluate the level of exposure. While using a Platypus product, the exposure to a “listed” chemical may be well within the “no significant risk” range, but out of caution, we have placed the Proposition 65 warning labels on our products.

Are consumers using a Platypus product with a Proposition 65 warning at risk?

The California government states: “The fact that a product bears a Proposition 65 warning does not mean by itself that the product is unsafe.” The government also explained, “You could think of Proposition 65 more as a ‘right to know’ law than a pure product safety law.”

A Proposition 65 warning means that the product contains one or more listed chemicals. By law, a warning is required unless the business proves that the exposure to the chemical poses "no significant risk." The "no significant risk" level for carcinogens is defined as the level which is calculated to result in not more than one excess case of cancer in 100,000 individuals exposed over a 70-year lifetime. Therefore, if you are exposed to the chemical in question at this level every day for 70 years, theoretically, it will increase your chances of getting cancer by no more than 1 case in 100,000 individuals so exposed.

The "no significant risk" level for reproductive toxicants is defined as the level of exposure which, even if multiplied by 1,000, will not produce birth defects or other reproductive harm. Therefore, the level of exposure is below the "no observable effect level," divided by 1,000. (The "no observable effect level" is the highest dose level which has not been associated with observable reproductive harm in humans or test animals.)

For further information about California’s Proposition 65, please visit http://oehha.ca.gov/prop65/background/p65plain.html

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