• 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 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!
  • I have a latex allergy. Can I use HydraPak products?

    All of HydraPak's products are latex-free, and don't contain any similar compounds that could affect someone with a severe latex allergy. Our bite valves are made of high-quality silicone, and our reservoirs, flasks, and water storage containers are all made of Thermoplastic Polyurethane (TPU). Our products are also BPA-, BPF-, and BPS-free

  • How to Open A Stash Bottle

    If your Stash bottle is an older model and it doesn't have a pull tab on the bottom, then opening it can be a little tricky.  But fear not!  We have created a short 1-minute video that shows 3 different ways to open it.  Check out the video on our You Tube channel.

  • 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 do I open, close, and fill my HydraPak reservoir?

    To open, pull the slider top sideways from the closed/flared end until removed. Unfold the opening and pull the two sides apart. To close, fold the top molded parts down once and slide the slider top across the length of the folded area to seal. For optimal performance, apply a food-grade silicone lubricant to the slider top.

    Before you fill your reservoir, make sure the exit spout is sealed with the Plug-N-Play connector and the Slider top is off. Begin to fill the reservoir with water, but be sure not to overfill (see max fill line indicator). The reservoir was designed to carry both cold and warm water (-20°F up to 170°F). See what we recommend and don't recommend putting in your HydraPak.

Product Care

  • 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. 
  • 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. 

  • 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


Still need help?

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