Katra wrote:
> In article >,
> zxcvbob > wrote:
>
>
>>Katra wrote:
>>
>>
>>>Or use a soda pump.
>>>They have a pump cap now where you can put a cap on it and pump pressure
>>>into a bottle to prevent anymore "flattening" of the carbonated product.
>>>
>>
>>Those don't work. Pumping air into the bottle won't hold the CO2 in
>>solution. If you want a scientific explanation of why not, look up
>>"partial pressures".
>>
>>Best regards,
>>Bob
>>
>
>
> Actually, I think the whole concept of diffusion might explain it.....
> ;-) I s'pose if you used a CO2 cartrige and pumped that in there it
> might work.
>


I have a big CO2 tank on my aquarium (to feed the plants) and I use it
to repressurize 2-liter bottles of pop that have gone flat, or to make
my own selzer. I put a truck tire stem in the top of a screw-on bottle
cap, and made a CO2 hose with a tire chuck on the end. I usually
pressurize to about 50 or 60 psi.

Best regards,
Bob