Modding your Sodastream

By on 4-03-2011 in Articles and Ramblings, How to do Stuff

Modding your Sodastream

Sodastream or SodaClub creates a product used to make your own soda at home. This device blasts CO2 into your water, converting it into seltzer water. You can then add your favorite syrup to turn the water into a yummy soda. I love my Sodastream until I found out how much it costs to replace the CO2 tank. A tank exchange will cost you almost $20. Moreover, you can’t fill the tank at a paintball store because Sodastream has their own unique valve on the tank. If you are like me and drink soda everyday, you will go through one tank/month. $20/month for CO2? HELL NO!

I had to find a way to relieve my ass from the anal pounding I was receiving from Sodastream. This was my solution. Yours may vary depending on the setup you would like to have. I just wanted to find a way to fill up my tank from a larger CO2 tank at home.

Warning! – Do any of this stuff at your own risk. I am not responsible for your stupidity.

1. Buy a 20lb tank from craig’s list. Cost- I paid $70. I may have been ripped off, but I’m not a gas man so I wouldn’t know. I saw prices on Amazon for about $100, so $70 felt about right to me. Be sure to get an aluminum tank. This tank will be exchanged at a company called “Airgas” for about $18. This should last more than a year, but I don’t know yet as I’m still on my first tank.

2. Buy the professional fill station with an adapter at SodaCo2. Cost: $125. These guys did an amazing job making their adapter for the Sodastream valve.

3. You’ll have to modify the valve as shown in this video:

Here’s information not on the video. The “easy out” is actually called a “Screw Extractor”. This was a product I had to buy because I did not have it on hand. I purchased the Black & Decker 16270 set because it was the only one at Home Depot. I found out later that the reviews on this product are god-awful. Fortunately it didn’t break on me, however, the extractors are not labeled with sizes; just labeled from 1 – 5 (very useful, you assholes!). I made a quick chart here with the sizes:

Black & Decker
Screw Extractor 16270

#1 – 5/64″
#2 – 7/64″
#3 – 5/32″
#4 – 1/4″
#5 – 9/32″

I used the #4 – 1/4″ for extracting the part described in the video. Unlike the guy in the video – it took me a few tries to get the screw extractor in to eject the piece.

4. Fill your tank as shown in this video:

This did not work for me initially. When I went to fill the tank, CO2 leaked from the sides. I ended up using one of the rubber o-rings that came with the professional fill station. I put the ring on the sodastream tank like so:
sodastream valve,

I cannot get a complete fill. I’ve tried cooling the tank as shown in the video, but still no luck. After filling the tank for a while, it will reach a point where you can feel that no more CO2 is going into your tank. This isn’t bad, the tank just doesn’t last as long and I have to fill it up a little more often. Right now, I’m refilling every week or so.

In reading this article you probably figured out that I’m not an engineer. I’m just a humble graphics guy, and have no clue about gas. I’m showing what I did to inform other folks as retarded as I am on this subject. If you have other tips and tricks, please share with me. I love learning new things and that is why I loved doing this project; it was completely outside my talent base. Finally let’s do the math on this project. I spent about $200 for a working refill system. It will take slightly more than 10 months to get my return on investment.

Have you created a unique drink using your sodastream? Tell us here:


  1. You need a pressure brake for the filler. Basicly a bleeder valve. When you fill the tank you hold it upside down and slosh it a little to cool it. After its 'filled' you hold teh tank right side up and bleed the pressure slightly then fill rinse and repeat. The purpose of this is to put more pressurized liquid co2 into the tank and less pressurized gas co2 which in effect puts more co2 into the tank.


  3. Any know the inside thread type op the sodastream CO2 bottle?

  4. Any know the inside thread type op the sodastream CO2 bottle?

  5. Actually ALL CO2 is the same, it is the bottle that may be certified as Food Grade. The difference is that the inside of your tank will be chemically cleaned for food grade tanks and for industrial use tanks it may not be, However, even the industrial tanks are not as dirty as some may have you believe as most are used with very expensive valve systems and any debris in the gas could cause serious damage costing thousands of dollars in industry. So, for those that are pushing their "Food Grade" tanks and "Food Grade CO2". I would give them a good idea where they could stick their "Food Grade" merchandise..

  6. actually there is different grades if co2 most CO2 is industrial grade, learned this plaintballing cleaning all the gunk out of old regulators(only the CO2 in there) it isnt as "clean". when you cool or "frost" the tank you want to fill it about 1/4 and dump the CO2 until the bottle frosts over. basic chenistry. Pressure * volume= moles of gas * gas constant * temperature. lower the temperature, you can fit more gas in the same amount of space at the same pressure.

  7. I watched you vide a few years ago and have been filling my own sodastream CO2 bottles ever since. One trick the firefighter/extinguisher guy helped me out with was chilling your tank. When your Sodastream tank needs a refill, put it in the your freezer overnight. Next day fill it while cold. You will get a lot more CO2 in the bottle than normal.

  8. Careful with They ripped me off. Still waiting on my refund. Horrible customer service by the only one person that runs that two-bit website. The product is inferior, posing a hazzard. Beware!! Better off going here…

Submit a Comment