Diy co2

[limz_777]

came across this on other website , quite interesting , not quite good at chinese language can anyone translate the video ?http://v.youku.com/v_show/id_XMjM5NTQ1Njg0.html

[limz_777]

anyone to translate ?

[thebaldingaquarist]

I have use this product before. Did not really see the video, but if you are interested in how it works, here goes..

Bottles a and b.
Bottle a put baking soda
Bottle b put acid

Connect the pipes, one of the pipes will go into the liquid. This pipe will be used to transfer liquid from bottle a to b and vice versa.
Finished connecting, you jump start the system by pumping air into one. This causes pressure buld up in one bottle and this the liquid from one bottle is passed to the next.
Reaction occurs, now the co2 is generated, the pressure in that bottle will build up. Causing liquid to flow back.
To and fro, co2 will be created.. Until pressure is evenly high on both bottles. That's when you turn abit of the valve.

Wala, co2.

[stormhawk]

By acid does it refer to vinegar, or something else?

[limz_777]

is it cost effective than sugar/yeast mix and last how long ? interested to know the formula , its 200 g baking soda and 200g vinegar?

also i notice have to pump to mix the mixture, one time operation or everytime need to pump ?