It sucks to buy an expensive Hydro Flask only to find out that your Hydro Flask lid is leaking.
It kind of defeats the purpose of having a water bottle if the lid doesn't close properly and it leaks water everywhere.
So why is your Hydro Flask lid leaking? What exactly is causing your lid to leak water everywhere and what can you do to fix it?
Hydro Flask lid leaks are usually caused by a faulty rubber gasket. You can contact Hydro Flask for a replacement under warranty or buy a cheap replacement yourself. Straw Lids and Flip Lids often leak and Hydro Flask state they are not leakproof.
So if you've got a straw lid or a flip lid then you're out of luck here. You've just got a leaky Hydro Flask. But if you've got a regular Flex Cap lid and it's leaking then something is wrong.
Luckily it's an easy fix.
In this article we'll look at all the reasons your Hydro Flask may be leaking and what you can do to fix the problem so your Hydro Flask never leaks again.
Why Is My Hydro Flask Lid Leaking?
Before you go ahead and look at the fixes it's important to try and work out WHY your Hydro Flask lid is leaking.
Sometimes it's just a simple issue or something you weren't aware of (some Hydro Flask lids aren't designed to be leak proof) or sometimes it requires a replacement.
Your Lid Isn't on Tight Enough
This is the first thing to check. Are you tightening your lid tight enough?
Hydro Flask lids are leak proof due to the rubber gasket pressing hard against the metal rim of the bottle.
If it's not screwed down tight enough then this connection doesn't happen properly and water can leak through your lid.
So try tightening your Hydro Flask more and see if that fixes the problem.
Broken or Faulty Rubber Gasket
There is a chance that the rubber gasket you got with your Hydro Flask is faulty.
Maybe it has a small tear in it, maybe it's the wrong shape or maybe it's broken completely.
Also, rubber doesn't last forever so it's possible that over time the rubber gasket will wear down and stop working as well, in which case it needs to be replaced.
You can also read about the common Hydro Flask gasket problems if you want more information.
Rubber Gasket Is Misplaced
Sometimes the rubber gasket can move around on your lid and not be in the correct place which can lead to leakages.
Maybe it's popped out of place and you just need to put it back into place to fix it.
Faulty Plastic Lid or Bottle
Less common but still completely possible is that it's not the rubber gasket that's the problem but rather the plastic lid itself or the stainless steel bottle.
Have a look for defects and see if you can see anything.
Hydro Flip Lid Isn't Leakproof
The Hydro Flip lid is now discontinued but there are still a lot of people who own these lids and have them on their Hydro Flasks.
These lids were designed for coffee and were sold with Hydro Flask coffee mugs. But what a lot of people didn't realize is that these aren't leakproof.
Hydro Flask even said it on the Hydro Flip lid listing page:
Please note that the Hydro Flip Lid is not leakproof.
Hydro Flask Straw Lids Aren't Leakproof
While you might think that the Straw lid is designed to be completely leakproof given it's one of the most popular lids and they come standard on the Hydro Flask kid's coolers it turns out they aren't actually designed to be leak proof.
They are “leak-resistant”.
Hydro Flask state it clearly on their Wide Mouth Straw Lid listing:
Please note that the Wide Mouth Straw Lid is not leakproof and is not intended for use with hot liquids.
However, a lot of people still use them and find they are completely leak proof. I personally own a straw lid for my 12 oz Hydro Flask Kid's bottle and it works absolutely fine and never leaks. But some people do have different types of issues with the straw lid.
This Redditor had water leaking out of the top of their Hydro Flask straw lid whilst the bottle was upright:
People on this Reddit post stated:
Straw lids are notorious for leaking. I want to know the actual fail rate on them, but it's very hit or miss.
I’ve had 2 straw kids and both leaked at the same rate. I had to switch back to the standard lid.
So it definitely seems like the straw lids are hit and miss and it may leak or it may be completely leak proof. You own't know until you get one.
But I definitely wouldn't rely on a straw lid if you NEED it to be leakproof. You'd be better off with a standard lid.
What To Do If Your Hydro Flask Lid Is Leaking
Once you've worked out why your Hydro Flask lid is leaking what can you do about it?
How can you fix it so your lid never leaks again?
Well there are only really a few options for you, but luckily they are all pretty simple.
Contact Hydro Flask For a Replacement
Once of the cool things about Hydro Flask bottles is that they are backed by a limited lifetime warranty that covers you against any defects. This includes defects in leaking caps and lids.
On the Hydro Flask warranty page they say:
Broken or leaking caps: If your cap breaks or you notice a leak, do not send your flask to us. Instead, simply follow the link below to sign in and enter your warranty details. Please note you may be required to send us a photo of your cap to validate the claim. You will be responsible for the shipping charge to have the flask returned if you send the flask to us.
So first point of call is to get in contact with Hydro Flask and see if you can get a replacement.
The cool thing here is that Hydro Flask doesn't want you to send back your old lid to them before they'll process your claim.
They'll simply ask you some questions about your leaking lid or cap, maybe ask you to show some photos to verify the issue and then they will arrange a replacement for you if you're covered under warranty.
The worst they can say is “no you're not covered” and it didn't cost you anything except a little bit of time.
To claim your warranty you'll need to make sure you've got a real Hydro Flask (not a fake) and you've purchased it from an authorized dealer. You may also need your proof of purchase so hopefully you still have that.
If you've got all that then click here to go to Hydro Flask's warranty page and click the “Submit a Warranty Claim” button under the “Product Warranty” section.
Buy a New Rubber Gasket Replacement
If for some reason you can't make a warranty claim or don't want to then you can easily buy some cheap Hydro Flask replacement gaskets from Amazon.
These usually comes with 2 new rubber gaskets as well as the tools you need to remove the gasket and replace it.
It's a super cheap way to fix a leaking Hydro Flask lid or cap that has an issue with the rubber gasket.
Buy A New Lid
If you've got a Hydro Flip lid or a Straw Lid that is leaking because it's not actually leak proof you may decide that you want to buy a new lid to solve your problem.
You could buy a basic Flex Cap Lid for your bottle but there are actually some amazing Hydro Flask lid options out there from 3rd party companies. I've written this entire list of the best Hydro Flask lid options available. So check that out if you're in the market for a new lid.
Alternative click the lid below to see the range of lids on Hydro Flask's website: