Great info!

Would this be the same for British standard gas cylinders by chance?

LOL, foremost expert maybe a little overstatement 🤣. Foremost cheap guy trying to save money on CO2 refills... Definitely agreed 🤣

>> I'd point the tank vertically not horizontally, if possible,

The "straw" in the larger tank goes down to the bottom of the main CO2 20lb tank to pick up liquid C02 I believe? I know it feeds from the bottom on this particular tank anyway and assume it is feeding liquid into the tank and not just gas? Therefore I don't think I can get away with going vertical on the receiving tank although with over 350 dives under my belt also :) I do get what you are saying for sure. I have had this little tank blow off of the end of a device in this same family type and YES, it did head across the room and hit my washing machine LOL. The way this one is designed though is that it is only forcing air in through the small exhaust pin hole on the side of the brass neck on the receiving tank so there is no real threat of a "rocketing" bottle out of this configuration best I can tell. If anything...the main vertical 20lb bottle would be the one to be blowing gas out if the small bottle got loose somehow (best I can figure from my advanced rocket training ...uuum...nowhere but just joking anyway ;). When my small bottle launched last time it was really just a bit of a "lob" across 6 feet or so...not a rocketing across the room FWIW. It may have hurt if it hit me in the sack or fell on my bare toe but it wasn't too dramatic FWIW. Thanks for watching!!!

Yes it does!

Hard to say. Try cracking the valve super slowly to fill. There is an issue where if you open them too quickly a safety valve may be closing

Glad I saw your question. I still don't have a good routine of looking at my questions on my KZfaq channel. I Go through a canister of CO2 about every two and a half weeks at least so I would say that I have refilled no less than 15 or 20 of these canisters are ready and there's no sign of fatigue on the o-rings. I really do feel that being extremely gentle with the insertion and using the olive oil technique on the o-rings should preserve these reasonably indefinitely. But I do know what you mean as far as them getting torn up. I had a previous unit that I did not use the olive oil technique on and they got tore up after only two or three uses. That being said, since there's no caution in the owner's manual I also would not hesitate to simply reorder a replacement unit off of Amazon, take the o-rings out of it and return it to the manufacturer with the broken o-rings if that was to happen... If they do not make o-ring or parts available for this unit. I don't have much of a conscience for stuff like that if people sell stuff like this without replacement parts. That's just me and it might not be a solution for everyone though

Love that comment!

Boyle’s Law. When the canister is cold, the pressure inside the tank is lower than if it was room-temperature; when filling the canister, you’ll get more gas flowing in.

Thank you for the compliment I appreciate that! Please be sure to subscribe if you have not already. I'm three subscribers away from getting to 500 and then I really want to up my video editing on my channel lol. The reason you freeze the bottle is because it allows more of the compressed CO2 gas from the donor tank to The smaller container. It makes a massive difference

Hello, would you mind to share the link of the product on Amazon? Thx

If you have two o-rings currently inside the device the other ones are just spares. Lubricating these primary ones with the olive oil will definitely extend the life. I have filled no less than 25 of these canisters so far using that technique and I have never changed the o-rings out yet

When you had your canister refilled at the gas supply, did you receive your original personal tank back or just a refilled one that was previously owned by someone else? The type of tank that you need must have a straw internally that siphons from the bottom of the tank. There are two versions of these tanks (or maybe more). If you do not have your original tank after the refill it's possible that you received one in exchange that does not have the straw that feeds off the bottom. If that is the case then you would need to invert your tank completely upside down to do this refill process. There are other videos on KZfaq that show this process with inverting the tank that you may want to look into to try. It certainly will not hurt to try it that way to rule that out.

@@AndTodaysProjectIs a refill

@@AndTodaysProjectIs it was a different tank that they gave me back

Was yours the exact same type purchase through Amazon originating in China?

No, olive oil will absolutely not degrade the o-ring. Petroleum oil of course wood and would be disgusting in this environment and unhealthy

Are you freezing your canister? If not put it in the freezer overnight first. Also, verify that your main CO2 supply tank has the type of straw that feeds from the bottom of your tank. Distributor cell these large CO2 tanks in two different versions basically. One of them has a straw inside that pulls the liquid CO2 from the bottom and the other one has no straw. If yours has no straw then you must turn your tank upside down in order for it to dispense liquid CO2. There are other KZfaq videos on that procedure as well

When u refill have u noticed that the tank doesn't last long compared to a new one?

I have never noticed that it does not last as long And it really does not make any sense that that would be the case. If you have the same amount of weight as the original canister then it should give you exactly the same amount of CO2 delivered into your beverages if all the other conditions remain the same. It is imperative that you freeze the bottle for at least overnight before doing this to get the most into the cylinder

It's hard to say but you definitely must freeze the bottle if you are not doing that. If you are not freezing the bottle you will never achieve the desired fill level

All in all I have filled at least 25 of these canisters if I had to guess right now off of the exact same CO2 tank fill from when I purchased it and originally filled it. However this particular refill device I would say I have about 15 refills under my belt on with the same o-rings using the olive oil lubrication technique and a gentle insertion and extraction. On my first refill adapter I did rip through the o-rings pretty quickly because I was not lubricating them and I was not being gentle either. This device is different than my first device though and I like this design much much better. It seems like it will work for a long time using this olive oil lubrication technique. I remember doing the initial calculation of how many complete refills I should get off of a 20 lb tank. I broke it down to around $2.25 per refill at that time but I cannot remember exactly what the number was to be honest. I'm sure that will get you the answer to what you are wondering or at least very close to the ballpark. It is also my understanding that the companies that refill the 20 lb canisters can only fill them up to 80% capacity when they fill them up. I'm not sure if I am off on that or not but that is what I think I remember understanding.

Thank you so much for your reply, very much appreciated.

I can't answer the question unfortunately because I don't know which adapter you're using. One thing is absolutely sure, you definitely need to freeze the canister before you fill it. If you do not you will get very little compared to if you freeze it

@@AndTodaysProjectIs do u think there is a limit on how many times u can refill a canister

​@@kc6071 I really don't know if there is an answer to that. Most compressed air tanks have an inspection date or an inspection expiration date. I haven't actually taken note if these do or not but that's a very good question and I need to look at that on them.

I just had my 20 pound tank filled. He gave me a tip, said when you freeze your small tank to just put a little bit in there and then refreeze it again and you can get more in your tank. It takes some of the air bubbles down I guess.

Correction, I emptied the pink bottle but it still won't refill, what am I doing wrong? Your video made it look easy.

You have to open the large tank valve very slowly, there is a check value in the pink the bottles the prevents refills - the check value is initiated when too much pressure tries to enter at once, doing a slow fill at the start will prevent this@@pepelepew2690

NO. The pink tank absolutly does NOT need to be empty. Since this video I have stopped draining my tanks completely. I just shove them in the freezer over night, connect them, turn the valve on the main tank open and when it stops hissing I remove it and weigh it to make sure I get at least 1000 grams to 1250'ish max. I'm not worried about having a few grams too much gas in there personally but if you want to be safer about it shoot for whatever you find the weight of a new canister to be or use my video for that since I weighed one out in the vid brand new :) Thanks for watching. You MUST freeze your pink bottle before trying this.

@32ricke may have it correct on their reply to you. Give us an update and let us know here if slowing down the transfer worked. Also...as others have mentioned, you need to have the type of C02 main tank that has the straw down to the bottom of the tank...OR...you will need to turn your main tank upside down to get the liquid CO2 out into your small tank.

I had a tank with siphon tube (straw), nothing worked. Ended up wasting money and gave the tank back.

Done deal and thanks for watching and commenting!

Excellent. Thank you, and Happy New Year! @@AndTodaysProjectIs

It works every time the way I do it but thanks for watching

You think it's easier to take the top off of your tank, smash up and funnel dry ice... Not to mention go to the store every time you want to fill a tank to buy dry ice? I could literally fill 50 of these in 1 hour. Tell me you could do that with dry ice lol. Yeah, I've done dry ice and I have a video to prove it

If you want a high volume charge on your canister It needs to be frozen before filling with CO2. You also need to verify what type of CO2 tank you have that you are filling these off of. To my knowledge, there are two versions. One of those types of tanks has a dip straw that goes all the way from the top of the tank at the fill gauge down to the bottom of the tank. On these types of tanks you do not need to turn them upside down in order to fill your sodaStream tank. They feed directly from the bottom via that stainless steel straw inside of the serving tank. On the other type of tank that you will find out there there is no dip straw and thus you must invert your feeding tank completely upside down in order for any liquid CO2 to the exchanged into your receiving canister. If I was to guess, you might have the second type and when you try to fill your receiving canister you're only getting compressed CO2 air but not actual CO2 liquid.