XPost: alt.home.repair   
   From: xxx@yyy.zzz   
      
   On 2022-12-12 18:18:35 +0000, Bob F said:   
      
   > My guess would be that the pressures you are talking about using a stone   
   > would blast the water out of the container.   
      
   I'm not going to disagree where the advantage of the carbonating stone are   
   the bubbles, but all the descriptions I've seen of using them takes time.   
      
   I just realized though that I can attach the stone to a soda bottle cap,   
   and then flip the soda bottle upside down so that the stone is under water.   
      
   But if the stone takes time, that's the one thing I don't want to take, not   
   that I can't just pressurize it at 20 psi and leave it there for hours, but   
   if I do that, inevitable connection leaks will drain the CO2 tank.   
      
   > You are probably trying to   
   > find a nozzle with 1 of the same .5 micron holes as the stone has thousands.   
      
   Well, the simple answer to that is for me to buy a sodastream for about   
   $100 (which comes with a couple of bottles and CO2 canisters). :)   
      
   You're right though that the perfect answer would be a nozzle with one tiny   
   hole that I can mount in the cap of a one liter soda bottle.   
      
   Then all I'd need is some kind of "trigger" where I already have quarter   
   turn valves on my quick connect hoses but a button valve would be best.   
      
   Do they sell one-press button valves for air pressure hose fittings?   
      
   > I have been thinking about how to carbonate my corny kegs faster,   
   > because I do not like to leave the CO2 turned on for large times because   
   > of potential leaks.   
      
   Yup. I lost a couple of tanks worth of gas over the years due to leaks.   
   That's why I like my current five minute method, as if there are leaks,   
   they can only leak for the duration of the carbonation process.   
      
   With the sodastream that five minutes becomes fifteen seconds (if you shut   
   off the 5# carbon dioxide tank after each refill, which most people do).   
      
   > I might at some time try a system that pumps CO2 off   
   > the top of the tank through the stone at the bottom continuously. My   
   > guess is that it could charge a 5 gallon corny keg in 5-10 minutes or so   
   > of having the gas on at 50 PSI, much better than shaking the keg madly.   
      
   One of my friends suggested a "pressure cooker", which is designed to not   
   only hold in pressure but to vent at a given weight-based pressure he said.   
      
   > When I turn on the CO2 to carbonate a keg of fresh cold water with the   
   > regulator set to 30-50 PSI, I hear the gas running into the tank for   
   > several seconds, then tapering off.   
      
   Thank you for your keg experience, which is what I do not have.   
   Why is a keg carbonated anyway? Isn't the beer already carbonated?   
      
   Even so, it's good to know you can hear the gas go inside the keg. For a   
   soda bottle, I crush all the air out and the only thing I hear is the   
   initial fill which is instantaneous almost, at 50psi.   
      
   Then I don't hear anything for the five minutes it takes to get enough of   
   the gas to dissolve in the cold water.   
      
   >  I shake the top of the tank   
   > quickly back and forth I hear the gas quickly start flowing again.   
      
   Funny you mention that. When I shake the bottle, I see the pressure gauge   
   drop from about 50 psi to about 45 or 46 psi, and as the five minutes get   
   closer to ringing the bell, from about 50 psi to about 48 or 49 psi.   
      
   What I'm seeing (and you hearing) is more gas dissolving into the cold   
   liquid as we shake which exposes more surface area to the gas.   
      
   > Stop shaking, and it again tapers off. That taper time indicates how much the   
   > shaking increases the gas dissolving into the water, and I expect the   
   > continuous tiny stone bubbles would be way better.   
      
   My experience (with the gauge) is the same exactly as yours with the sound.   
   I thought of putting flow gauge on the hose but I couldn't find a carbon   
   dioxide flow gauge. Only oxygen flow gauges. And they were expensive.   
      
   Plus it's another leak waiting to happen.   
      
   It will be very interesting though to put a stone on the inside of the soda   
   bottle cap, and then inverting the soda bottle so that the stone is under   
   water. I will order one from Amazon because they're so inexpensive I may as   
   well use them no matter what I end up doing.   
      
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