• How do I find the production code on my reservoir?

    Our production codes are embossed (stamped) into the plastic film.  Since they are not printed, they can sometimes be a little hard to find.  But knowing where to look can be a huge help.  

    For Reservoirs, turn the reservoir to the back and look for the vertical seam on the left.  Once you locate the seam, you can find the code embossed about 1"-2" down from the top. 



  • How do I get a replacement part?

    If you want to upgrade your reservoir's tube connection or need to replace a bite valve on your reservoir, HydraPak.com offers a variety of replacement parts and accessories. And, we'll replace most parts under warranty if you experience any manufacturing defects or material failures. - file your claim here

  • What does the warranty cover?

    We go above and beyond with every product we make, and our warranty is no different. If you experience any issue with the product’s manufacturing or materials, we’ll repair or replace the item for free. Whatever it takes for you to keep the adventure going!

Product Use

  • How to Replace a Bite Valve

    Bite valves are a wear and tear part and will periodically need to be replaced.  The help article below has three sections:

    1. Reservoir Bite Valve, Sheath Replacement
    2. Reservoir Bite Valve, Complete Assembly Replacement
    3. Softflask Bite Valve, Sheath Replacement

    Reservoir Bite Valve, Sheath Replacement

    Often times the part that fails is the soft biting surface that is known as a sheath. Replacing the sheath is easy takes less 30 seconds.


    1. Remove the sheath - Grasp the hard plastic part of the valve and in one hand and the sheath in the other and pull apart. 


    2. Install new sheath by pushing it onto the valve body.



    Reservoir Bite Valve, Complete Replacement

    Depending on the original problem with the bite valve, it is sometimes necessary to replace the entire bite valve.  We define the bite valve as the complete assembly located at the end of the tube.  This includes the hard plastic body and the soft biting material (known as a sheath.)


    1. Remove the bite valve from the tube

    Quite simply, the bite valve assembly needs to be pulled out of the tube.  There are barbs that hold the bite valve to the tube.  Grasp the tube in one hand and grab the bite valve plastic body in the other hand and pull hard.  The bite valve will pull out of the tube. 


    Sometimes the valves can be difficult to remove.  In this case, we recommend the following solution using hot water.  Heat water up to 170 F / 77 C and place into a coffee cup. Place the bite valve and end of the tube into the cup and let it sit for 30 seconds. 


    Once the hose is heated up, the bite valve can be pulled out of the tube.  Be careful as the plastic will be hot.  We recommend covering the end with a towel and then grasping the bite valve assembly firmly and then pull it out of the tube. 

    2. Install the bite valve.  Normally, you can press the new bite valve into the tube with any problem.  If you find it is difficult to press into the tube, use the hot water method above to heat up the tube and then press the bite valve into the tube. 


    Softflask Bite Valve, Sheath Replacement

    Much like a sheath replacement on a reservoir, the sheath replacement on a flask is quick and easy.


    1. Remove the old sheath by pull it straight off of the flask.


    2. Install the new sheath by pressing it onto the softflask. 


    That's all there is to it.  Please let us know if you have any questions or concerns.

    Phone: (510) 632-8318

    Email: info@hydrapak.com



  • How To Open A New Reservoir

    HydraPak reservoirs can be somewhat difficult to open when they are brand new.  But rest assured, our reservoirs will open!  The following steps will walk your through the initial process of opening our reservoir.  After the reservoir is open for the first time, it will be much easier to open for the rest of the life of the product. 


    1.  Remove The Slider Top

    Grasp the slider top firmly and pull to the side.  The slider is directional so be sure to pull towards the closed end of the slider. 


    2. Flip The Flap Up


    3. Locate The Front Handle

    Locate the front handle and place 2 or more fingers underneath.


    4. Locate The Rear Handle

    Look at the back of the reservoir and locate the handle, then place at least a couple of fingers underneath it. 


    5. Pull The Handles Apart From Each Other

    With a firm grasp of both the front and rear handles, pull the two handles apart from each other in opposite directions.  A fair amount of force may be necessary so pull hard.  Our reservoirs are tough.  They can take it!


    Viola!  Your new reservoir has been opened. 


  • How Do I Convert a Fixed Hose Connector to a Plug N Play System?

    This conversion gives the user the ability to quickly connect and disconnect their hose to their reservoir.  This is very useful for when removing the reservoir from the pack for cleaning or for filling. The installation comes down to 3 easy steps.
    1) Remove the fixed connector from the reservoir.  This can be accomplished by hand.  It helps get more leverage, it you leave the hose on the fitting.  Give it a quick, sharp tug to the fitting and it should come out.  If that doesn't work, pull the hose off and pull the fitting out with a pair of pliers.  Watch this 30-second YouTube video to see how to use pliers to remove the fitting.
    2) Install the Plug N Play valve into the reservoir.  Simply press the valve into the port of the reservoir.  It is not necessary to add lubrication to the valve or port for this step.
    3) Install the hose-end fitting.  First, remove the fixed connector if it is still attached to the hose.  We recommend that it be cut off with a pair of scissors.  Second, moisten the barbs on the new hose-barb fitting and insert it into the tube.
    Here is a 1-minute video that shows the complete process from beginning to end.
    The final step is to apply a small amount of silicone, glycerin, or bees wax to the o-ring on the fitting.  Not too much! Just enough to make the o-ring shiny.  
    That's all.  You're done!
  • How do I use my bite valve?

    Bite the soft portion of the valve and suck at the same time - this will start the flow of water. The valve will remain sealed when not in use.

    Some models are equipped with a lock that you can engage to prevent accidental spilling which you can operate the shutoff by rotating the body of the valve 90 degrees.

  • How to Replace an Osprey Inline Quick Disconnect

    The inline quick disconnect (QD) found on many Osprey reservoirs can be replaced without requiring a new tube or reservoir.   Please follow the guide below to install a replacement.

    Required Tool -Hot water in a coffee mug -Water temperature should be 170 F / 77 C

    The hot water will aid in the removal of the old QD from the hose.


    Step 1

    Separate the two halves of the hose by pressing the button on the old QD.  Place the end of the two parts of the hose with the QD into the hot water.  Leave for 30 seconds.


    Step 3

    Once the hose is heated up, the fittings can be pulled out of the tube.  Be careful as the plastic will be hot.  We recommend covering the end with a towel and then grasping the QD parts firmly and then pull each half out of the tube. 


    Step 4

    Install the new QD.  If the tube is still hot, the new QD can be pressed directly into the tube.  If the tube is cold, reheat the tube to install the new QD.


    Wait for the tube to cool completely before you begin your activity.

    That is all there is to it!  Please let us know if you have any questions.

    Email: info@hydrapak.com

    Phone: (510) 632-8318

  • How do I use my Shape-Shift baffle?

    If your reservoir features a Shape-Shift baffle you have the option to leave it locked or unlocked. To lock, reverse the reservoir to expose the top of the baffle. Press the top part of the baffle together and snap the two sides into place. Next, return the reservoir to its natural orientation and slide your fingers down the length of the baffle (on the outside of the reservoir) to engage. To unlock, empty the reservoir, fold the top down and pull the baffle sides apart. Watch this video to learn how. For optimal performance, periodically apply a food-grade silicone lubricant to the baffle.

Product Care

  • Cleaning your reservoir

    Keeping your reservoir clean is key to prolonging its life and keeping your water tasting fresh. HydraPak reservoirs are top-shelf dishwasher safe and most are fully reversible, which makes cleaning and drying a breeze.


    Reverse by placing your hand in the reservoir, grab the bottom, and pull it back through the top opening, just like turning a sock inside-out. The molded opening can also be flipped after the reservoir body has been reversed. Then, throw it in the dishwasher or rinse with mild soap and water. Make sure to let the reservoir dry out completely while reversed.


    The Shape-Shift features a removable baffle which locks for a slim profile and increased stabilization. When unlocked it reverses for easy cleaning - place it on the top-shelf of your dishwasher or rinse with mild soap and water. Make sure to let the reservoir dry out completely while reversed.


    Many of our brand partners use a fixed baffle reservoir called the Shape-Loc. It can only be reversed up until the baffle is exposed but is still simple to clean. We recommend either using a bottle brush or Bottle Bright.

    Method One - Fill your reservoir with warm water and use a bottle brush along with mild soap to scrub it clean. Rinse well and hang it upside down to dry.

    Method Two - Fill your reservoir with warm water and drop in one or two Bottle Bright tablets, slide the top close and let sit for fifteen to thirty minutes (depending on the amount of residue). Rinse and hang upside down to dry.


     All of our components are removable for easy cleaning:

    1. Disconnect the drink tube from the reservoir
    2. Grasp the bite valve in one hand and tube in the other then pull the valve firmly to remove the bite valve from the tube
    3. Gently remove the silicone sheath from the valve and clean with Bottle Bright or mild soap and water
    4. Clean the inside of the tube by inserting the Hydrapak Tube Brush in the open end of the tube and scrub
    5. After drying the components, carefully reattach the sheath to the valve and re-install


  • Lubrication for your Plug-N-Play™ connect system

    The Plug-N-Play™ connect system needs a little bit of care to keep your adventure going. We recommend that silicone, glycerin, or beeswax-based lubricants be applied to the o-ring on the hose end fitting. Just apply a small smear on the o-ring - a little goes a long way! Do not use petroleum-based lubricants, or olive oil, coconut oil, or any other types of cooking oil as they cause the seal to swell, and will make the system sticky and hard to release. 

  • My slider top is difficult to move - what can I do?

    There are two methods for improving the operation of the slider top for your HydraPak reservoir: 

    1. Avoid filling the reservoir above the maximum fill line. If you over-fill the reservoir, it will create pressure on it, making the top harder to operate. If you leave some room, the pressure is reduced making the slider operate more easily. 
    2. Apply some food-safe lubricant to the tracks of the reservoir. We recommend silicone, glycerin, or beeswax. Don't use oil-based lubricants, as they can make your system sticky, which makes the slider more difficult to operate. Smear a small amount on the tracks and it will make the slider action much smoother. 
  • How Do I Recycle the Header Card?

    Regarding the plastic header cards and how to recycle them - the material is PolyPropylene.  It is typically considered #5 for recycling purposes. 


  • Squeeze Bulb Cleaning Instructions

    1. Rinse with warm water and a small amount of mild soap. Run warm water through the bulb until the flow runs clear and has no traces of soap inside of it.

    2. If soap and water is not enough, we recommend filling the nozzle with Bottle Bright dissolved in water, letting it soak for 15 minutes or more, then rinsing again with warm water until all of the cleaning tablet and water mix has been expelled. This should give your squeeze bulb the deepest clean possible  without causing any damage to the materials.

    *Note: Completely disassembly of the squeeze bulb is not required for cleaning. The assembly has some tight fitting parts that may break with improper removal. If you do choose to take the product apart for a deep clean, you will need to do so with great care as the product has a number of important seals and one way valves that can be compromised with incomplete or inaccurate assembly. When resembling, it is crucial to take great care to install one way valves so that they activate in the direction of the flow (see arrows on product) and that the silicone o-rings are placed on top of that valve are carefully installed so that they are fit snug between the valve cage and the inner wall of the thread on the bulb.

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