Filling the Sodastream cylinder - only 150-200g of CO2 from the 6kg mother cylinder. How to improve?

Name: Filling the Sodastream cylinder - only 150-200g of CO2 from the 6kg mother cylinder. How to improve?
Uploaded: 2022-03-15T08:57:01+01:00
Description: Hello I have a problem, I bought a shunt for filling the sodastream cylinder with a 6 kg mother cylinder I`m doing something wrong, I only get about 150g-200g, I`ve already read various posts on this subject, but nowhere specific answer I have it 6kg co2 cylinder with siphon sodastream cartridge...

Question

Hello I have a problem, I bought a shunt for filling the sodastream cylinder with a 6 kg mother cylinder I`m doing something wrong, I only get about 150g-200g, I`ve already read various posts on this subject, but nowhere specific answer I have it 6kg co2 cylinder with siphon sodastream cartridge...

Zbychul · Accepted Answer

@gelob - exactly. Without supporting the valve in the small cylinder, none of this will happen. I had to add such a pin in my shunt.

Zbychul · Accepted Answer

Honestly, it`s not very professional, but it does its job.

I drilled a hole in the groove to 6.5 mm and threaded M8, and a piece of M8 screw was drilled through to 4 mm and cut (without head) to approx. 2.5 cm. It must be adjusted so that it chokes the valve a moment before the small cylinder is fully tightened on its thread - if it is too tight, too much gas will be released into the air when unscrewed. these visible cuts are for adjustment and to give the gas a place to pass.

edit:
you also need to make sure that the pin does not rotate too easily, otherwise it will become out of adjustment. I gently tried it with a hammer

jdubowski · Answer

What kind of valves do you have in your cylinders? Does the 6kg cylinder have a siphon tube or not?

pirek85 · Answer

yes, the cylinder definitely has a siphon tube and the sodastream cartridges are supposedly double-directional, you have a photo above

jdubowski · Answer

And do you set it with the valve up?

pirek85 · Answer

yes, of course, but once, out of desperation, I tried to turn it upside down and almost nothing came in, about 20g

gelob · Answer

check the plunger pin that should open the valve in the cylinder being filled - maybe it is incorrectly adjusted and it does not open it and only partially fills because the pressure from the large cylinder is not able to open the valve any further.

pirek85 · Answer

Can you be a little clearer, because I don't really understand what kind of pin, or do you mean the movable part in the coil that is screwed in with an Allen key? If so, how to adjust it???

gelob · Answer

yes, it's about this pin, I'm planning to buy a set of a cylinder and a similar shunt. According to my opinion, after screwing in the cylinder, this pin should open the filling valve in the small cylinder. The bottle should be completely empty before filling. This pin, screwed in with an Allen key, can be used to adjust the pin protrusion. Is the knob at the top of the shunt used to bleed the system or to move the pin?

pirek85 · Answer

only to bleed air after filling a small bottle, it follows that it is best to screw in the pipe with an ampel and unscrew the pin so that it goes more into the mother bottle and maybe then it will be ok, I have already checked it in various ways, I have tried it, but I won`t check it yet p.s. I regret that I didn`t immediately buy a shunt with a hose directly from a large bottle to the sodastream distributor, bypassing the cartridge, I saw such a miracle on Alli for PLN 100 and charging it from my head

gelob · Answer

It would definitely be easier to understand what you wrote if you used punctuation.

Nevertheless, the direct set you mention has its pros and cons. (The carbonator must be placed in one place, often = a hole in the countertop, a large bottle unscrewed all the time (the system is under pressure) - the gas can slowly escape. Convenience is a plus, of course.)

I am wondering which variant of the shunt to buy so that I can easily refill my cylinders and not have problems like you are having now with partial filling.

pirek85 · Answer

A lot of people write that they can’t reach the max cylinder, but I haven’t found a specific solution yet p.s. I’m dyslexic :D Added after 5 [hours] 48 [minutes]: I just now completely removed the pin from the cartridge, the cartridge was frozen for 3 hours and it still loads about 200 g.

gelob · Answer

And are you able to drain the gas from the filled cylinder using a grommet with a pin without connecting it to the mother cylinder?Maybe this pin doesn’t reach the sodastream cylinder?

pirek85 · Answer

the pin is in the grommet on the side of the large cylinder, not on the sodastream side, and I unscrewed it completely and moved it without the pin, and it still doesn’t work.

gelob · Answer

and you see, your shunt has a pin to open the valve in the mother cylinder (apparently there are cylinders that have an additional valve that needs to be opened with such a pin) and not to open the valve of the sodastream cylinder. From what I see, most other shunts have a pin on the side of the cylinder filled with 425g of CO2, which opens the cylinder valve for filling. There is a spring in the valve that closes the valve. I suspect that when filling the cylinder, the pressure from the mother cylinder is able to open the valve automatically to the 200g of CO2, and then probably due to the spring of the filled cylinder and the accumulated pressure, it is not able to reach the 200g (open the cylinder valve only with CO2). It would be good if someone who has done cylinder filling confirmed or denied my theory.

pirek85 · Answer

you’re probably right, my shunt doesn’t have a pin on the sodastream cylinder side and that’s why it doesn’t go in anymore

pirek85 · Answer

It's hard to get a pin like that, could you send me a photo?

pirek85 · Answer

OK thank you

gelob · Answer

I did a filling test without opening the valve with a friend who has a slightly different filling set. The bottle was cooled in the refrigerator for several days and contained 350g of CO2. Filled from a cylinder without a siphon (upside down). It seems that the gas pressure in the cylinder you are filling from is no longer too high, or your valve has a stronger spring.

I ordered it on Ali for PLN 55 and I will ship it

I think it will do its job.

pirek85 · Answer

I have already decided to buy a shunt on Alli, directly connected from the cylinder to the sodastream device, with a quick-connect fitting, but another problem because the Chinese write that it won't work if I have a cylinder with a siphon and another problem

Tomek_kendi · Answer

I'll join in on the topic. It's similar with me... I have a shunt with two valves on the top, a hose and a valve with a screw-in pin for the cartridge. The cartridge is empty, cooled, the 6 kg CO2 cylinder is new, I release the gas slowly or quickly (two-way valve in the cartridge), so I guess it doesn't matter. And so it only reaches 200 max. I tried to cool it down again and kill it, but it's about 60-100 g. I don't know where to look for a solution. This is my second bottle. From the previous one, at the very beginning I was able to fill 4 bullets without any problems, and then it was a matter of stairs with loading. Has anyone had a similar experience??? Maybe the cartridges need to be filled like a gas cylinder, loosen the valve screw on the side slightly or something??? I do not have a clue.

Loker · Answer

Bottle with or without a siphon?

Tomek_kendi · Answer

Yes, a bottle with a siphon...

gelob · Answer

Well, I already have a cylinder with a siphon, and a set with Ali which I posted a photo of earlier, a 2-way valve.
Filling the first 303 g was filled quite quickly because I couldn`t feel the cylinder valve.
Second filling 150g (filling extremely slowly so that there is barely any flow)
Cylinders from the freezer, no CO2 inside, 2-way valves. Pin of the filling cylinder lowered to the maximum during filling.

The next filling was 330g. I don`t know how some people get 425g....

krzys138 · Answer

Wiram, I have the same problem, I fill the max with 113g and I don’t want to go any more, it leaks in the valves, they open it all the way in the cylinder with Sodaster, and in the valve of the mother cylinder there is no valve and I can’t fill it with more.

kolokol · Answer

And I think the only way is to freeze both the small and large bottles. There is no other way. Don't let anyone tell you that he still uses 425g.
I've gotten used to it and I fill it more often and less (max 330g).

Anonymous · Answer

I do it regularly, what`s more, when filling, I put a small bottle on the scale so as not to overfill too much, sometimes it was 450g. A large cylinder without a siphon, a Chinese shunt with a hose and two valves, small cylinders with a one-way valve. The procedure is as follows: I release the remaining gas from the small cylinder and cool it to about -20, then I connect it to the large cylinder and gently open the valve to equalize the pressures (one-way valve), after injecting about 50 grams, I open it with a slow movement (about 2 seconds) the valve to the max and I wait until it reaches 425 grams. The most important thing is that the small cylinder is horizontal, it has to lie down, I don`t know why, but it works. When it was vertical, to fill 425g I had to close the filling valve and open the second valve in the shunt once, sometimes twice for about half a second to reduce the pressure in the small cylinder and then continue filling. Lying down is always max without this procedure. For those who don`t believe, I can record a video during the next filling. Freezing a large bottle is pointless, it will reduce the pressure inside it and thus make it more difficult to transfer, it is better if it is at room temperature and the small one is chilled.

Anonymous · Answer

The promised video and photos of filling the cylinder. Sorry it`s vertical, but I only had one hand and it was comfortable to hold the phone. The shunt as in the photo, a large bottle without a siphon, lies slightly at an angle when filling, a small bottle with a one-way valve, lies horizontally, frozen to about -20 degrees. I usually load 425 grams, but here I loaded 460g to demonstrate.

vogel1977 · Answer

Hello, tell me how to recognize a cylinder with a siphon from one without a siphon, because I want to buy one for Sodastream to fill the cartridges myself.

Filling the Sodastream cylinder - only 150-200g of CO2 from the 6kg mother cylinder. How to improve?

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