How to Replace a Cirkul Flavor Cartridge

November 24, 2025 •

4 min read

According to the official Cirkul website, one flavor cartridge, or 'Sip,' provides the flavor equivalent of six 20-ounce bottled beverages. To ensure a consistent and enjoyable experience, knowing how to replace a Cirkul flavor cartridge correctly is essential for all users. This process is quick and simple once you know the steps.

Quick Summary

Guide for properly swapping out an empty Cirkul cartridge with a new one. Detailed instructions are provided for removing the old Sip and inserting a fresh one, ensuring optimal flavor and preventing leaks. Best practices for cartridge handling and storage are also covered.

Key Points

Flavor Dial Position: Always set the flavor dial to 'X' before removing or inserting a cartridge to prevent spills.
Firm Click: Ensure the new cartridge is twisted clockwise until it clicks securely into the lid to prevent leaking.
Priming the Sip: If flavor is weak, turn the flavor dial from 'X' to '10' and back a few times to clear any air pockets.
Store Opened Sips: Opened but unfinished cartridges can be stored for up to 10 days at room temperature or in the fridge.
Regular Cleaning: Wash your bottle and lid regularly with warm, soapy water to prevent flavor residue buildup.
No Dishwasher for Sips: Never put a flavor cartridge in the dishwasher; they are not designed to be washed.

Preparation is Key: Before You Begin

Before you begin the process of replacing your Cirkul flavor cartridge, a little preparation can make the entire experience smoother. Start by ensuring your bottle is clean and ready for a new flavor. If you are swapping a used cartridge for a new one, make sure to set aside the old one, as it can still be used for up to ten days after opening.

Step-by-Step Instructions to Replace Your Cirkul Sip

Follow these simple steps to swap your old Sip for a new one:

Remove the old cartridge: First, make sure your bottle is upright and the flavor dial is set to the 'X' position. This stops any flavor from flowing out. Gently twist the used cartridge counter-clockwise to unlock it from the lid. Once it's loose, pull it straight up and out.
Unwrap your new cartridge: Take your new Cirkul Sip out of its packaging. The cartridge comes sealed to maintain freshness. Unwrap it carefully.
Insert the new cartridge: Align the new Sip with the opening in the Cirkul lid. The base of the cartridge has two small tabs that should align with the slots in the lid. Press the cartridge down firmly until it clicks into place.
Lock the cartridge: With the cartridge in place, twist it clockwise until it locks securely. You will feel and hear a definite click when it is properly fastened.
Set your flavor dial: Adjust the flavor dial to your preferred intensity. A lower setting (1-3) provides a hint of flavor, while a higher setting (7-10) delivers a stronger taste. Cirkul recommends starting around level 3 to find your perfect balance.
Enjoy: Your bottle is now ready to use with its fresh new flavor!

Troubleshooting Common Replacement Issues

Occasionally, you may encounter small problems when replacing a cartridge. Here are a few troubleshooting tips:

Difficulty removing the old cartridge: If the cartridge seems stuck, a firm but gentle wiggle can help. Ensure the flavor dial is on 'X' to relieve any pressure.
Flavor isn't coming through: After inserting a new Sip, turn the flavor dial from 'X' to '10' and back a few times. This helps to prime the cartridge and ensures flavor is releasing correctly.
Leaking around the lid: Double-check that the cartridge is fully locked into the lid by twisting it clockwise until it clicks. Also, confirm the lid is screwed onto the bottle tightly and that the O-ring is in place.

Comparison of Cirkul Cartridge and Traditional Flavoring


Feature	Cirkul Flavor Cartridge (Sip)	Traditional Flavoring (e.g., powder, drops)
Convenience	Instant flavor change with a twist of the dial. No measuring or mixing required.	Requires measuring, mixing, and can be messy. Powder packets can spill.
Flavor Control	Fully adjustable dial from plain water to maximum flavor intensity.	Limited flavor intensity control once mixed. Requires adding more product for a stronger taste.
Portability	Cartridges are self-contained and small, making them easy to carry.	Can require carrying multiple bulky flavor packets or bottles, and mixing can be awkward on the go.
Cleanliness	Minimal mess and residue. Cartridge remains sealed until inserted.	Powder and liquid residue can build up in the bottle and require more frequent deep cleaning.
Waste	A single cartridge provides flavor for multiple refills, reducing waste compared to single-use bottled drinks.	Can generate a lot of waste through small individual packets or bottles.

Proper Storage and Maintenance

To maximize the life and flavor of your cartridges, proper storage is important. For opened but unfinished Sips, you can store them on your counter or in the fridge. For best results, use an open cartridge within ten days. If you're switching flavors, you can simply swap out the Sip and store the unfinished one in a sealed bag or a dedicated cartridge holder to keep it fresh.

Regular cleaning of your Cirkul bottle and lid is also crucial to prevent flavor buildup and maintain proper function. The plastic bottle and lid are generally top-rack dishwasher safe, but always check the manufacturer's instructions for your specific model. For a deeper clean, handwash with warm, soapy water, paying close attention to the mouthpiece and threads.

By following the correct procedure for swapping your Sip and maintaining your bottle, you can enjoy a perfect, flavorful sip of water every time. For more information on Cirkul products and troubleshooting, you can visit the official Cirkul website: https://drinkcirkul.com/.

Conclusion

Replacing a Cirkul flavor cartridge is a simple and straightforward task that takes only a few moments. By following the correct steps—twisting the old Sip out, inserting the new one with a clockwise turn until it clicks, and adjusting the flavor dial—you can ensure a perfect, leak-free experience. Proper storage of unused Sips and regular bottle cleaning will further enhance your Cirkul experience, making it a convenient and enjoyable way to stay hydrated with your favorite flavors.

Frequently Asked Questions

You will know the cartridge is empty when you can no longer taste any flavor, even with the dial set to the highest intensity. Some users also report seeing the foil packet inside become deflated.

Yes, you can swap flavors at any time. Simply remove the current cartridge, store it, and insert a new one. Unfinished cartridges can be stored for up to 10 days.

Store a partially used cartridge by twisting it off the lid and placing it in a sealed bag or a cartridge holder. You can store it at room temperature or in the fridge, but use it within 10 days of first opening.

If you're not getting flavor, try turning the flavor dial from 'X' to '10' and back a few times to prime the cartridge. You can also give the cartridge a gentle shake to dislodge any air bubbles.

To remove a stuck cartridge, ensure the dial is on 'X' to release pressure. Grasp the cartridge firmly and wiggle it gently while twisting counter-clockwise. Avoid using excessive force.

According to some user discussions, the cartridges are made from recycled materials, and some recycling centers accept them after the internal foil bag is removed. However, check with your local recycling guidelines.

Check that the new cartridge is twisted and locked securely into the lid. Also, ensure the main lid is tightened properly onto the bottle and the silicone O-ring is correctly seated.