CO2 cylinder - One to one exchange system..

[bernard tay]

Hi bro/sis,

Anyone had bought from the shop beside the NA? The uncle selling me hos 2l CO2 tank (black & Silver with silver top) which he claims to be good and offer 1 to 1 exchange for top up.

Anyone use his service before? What's the different between the tanks (black & silver) that the uncle and NA has? It offering a attractive price but i am not sure on the quality between them.......Advice pls.

Thanks.

Cheers.

[Cacatuoides]

Do you mean the black & silver Vs the green CO2 tank?

To me, I don't find anything different about both....I have been using the green one for almost 5years now, still working fine for me *I also request back my own CO2 tank, I don't do 1 to 1 exchange when topping up*

[ranmasatome]

why change your tank when you know yours is working?? mine has been with me for a long time and its works perfectly..
Doing 1 on 1 exchange MAY get you a faulty tank..and it MAY not.. but why take the risk..when you arleady have one that works well.

[michael lai]

Hi Bernard,
there's not much difference between them, a faulty cyclinder is like 1 in a thousand or more. Both shops over there are quite popular with the aquarists here so you can buy with confidence. Welcome to the club and have fun.
PS: I also don't like to change cyclinder when topping up.

[valice]

It is down to personal preference...
With 1 to 1 exchange, I can afford to go down to the last bit of CO2 and bring down for exchange and bring back without having a day without CO2...

Also I don't want to have extra tanks at home, which I probably will need if I do top-ups...

[michael lai]

Bernard, just to add there are shops or places that top up immediately, you just wait there. The reason I don't exchange is because the cylinder might be tough but the regulator ain't. And I don't want to end up with a faulty one. Hope this helps with your decision.

[taysh75]

Bernard, just to add there are shops or places that top up immediately, you just wait there. The reason I don't exchange is because the cylinder might be tough but the regulator ain't. And I don't want to end up with a faulty one. Hope this helps with your decision.

Wow. That's fast reply!. Thanks everyone! I read somewhere that the black and silver cylinder is a industrial grade while the rest are different grade. I do think it refers to the main valve of the cylinder if i not wrong......

Anyone has bad experience on the main valve (green, blue or black&silver cylinder type?) What to look out for in the main valve that has least problem?
Thanks!

[taysh75]

Do you mean the black & silver Vs the green CO2 tank?

To me, I don't find anything different about both....I have been using the green one for almost 5years now, still working fine for me *I also request back my own CO2 tank, I don't do 1 to 1 exchange when topping up*

Oh. I meant the black & silver type from both shops. It seems that they are priced quite differently for both shops......Any comment? If not much diff, i might be a cheap and good one. Ha Ha Ha.

[hwchoy]

Bernard, just to add there are shops or places that top up immediately, you just wait there. The reason I don't exchange is because the cylinder might be tough but the regulator ain't. And I don't want to end up with a faulty one. Hope this helps with your decision.

how come you carry your cylinder around with the regulator attached?

[genes]

I do my 1 to 1 exchange with colourful aquarium (beside NA). Never experience any problem before.

[hwchoy]

how come nobody goes to Bioplast for on the spot top-up?

[taysh75]

how come nobody goes to Bioplast for on the spot top-up?

I came across thread that on the spot refill cannot refill to the maximum allowable co2. For those industrial refill, from what i understand, need a few days to refill so that max co2 can be refilled into the tank. Perhaps bro/sis out there can have a trial test and see if it is true.......

Any claims in that?

[taysh75]

I do my 1 to 1 exchange with colourful aquarium (beside NA). Never experience any problem before.

Hi Eugene, much he quote u for a new tank only? Can PM me?

[valice]

how come nobody goes to Bioplast for on the spot top-up?

Does Bioplast top-up with gas or liquid CO2?

I actually carry my tank with the regulator with it...
somemore with the bubble counter!
Haha...

[hwchoy]

I came across thread that on the spot refill cannot refill to the maximum allowable co2. For those industrial refill, from what i understand, need a few days to refill so that max co2 can be refilled into the tank. Perhaps bro/sis out there can have a trial test and see if it is true.......

Any claims in that?

dunno leh, I have a 2l cylinder running a 4ft capacity (3ft + 1ft) at aggressive injection level, lasts at least 4 months per top up.

[hwchoy]

Does Bioplast top-up with gas or liquid CO2?

I actually carry my tank with the regulator with it...
somemore with the bubble counter!
Haha...

can top up with gas meh? should be all liquid what, at that pressure.

you siao ah, why don't you just unscrew the nut on the regulator?

[ccs]

Bioplast refills with a bigger cylinder to our cylinder. Don't think is liquid.

[hwchoy]

it has to be liquid, else how many cylinder do you think they would need?

in a sense it doesn't matter what they fill from as long as you have a given weight of liquid CO2 in your cylinder, right? your cylinder is filled with liquid CO2 not gas, you know right?

[valice]

Yupz... I was abit lazy to unscrew my regulator. I just let Mr CHan do everything...

But your 2l lasts for 4 months?! Mine 3.6l lasts for only 3 months after splitting the injection to two tanks!

I seriously can consider Bioplast then if it is true...

[ccs]

it has to be liquid, else how many cylinder do you think they would need?

I ask him the next time i go gor a refill