Or out of ice over the cold plate flash chiller. Warm soda is flat soda.
Carbonator pumps put out way more than 100 psi. That's the CO2 pressure in a carbonator tank that the pump must overcome to inject tap water, which is why you need a pump to start with (tap water being way less than 100 psi).
I expect you'd need a bypass regulator, since the pump must need flow to stay cool, so a static (?) regulator wouldn't suit.
Or how about this: you could get a whole McCann's carbonator unit (pump, stainless pressure vessel, level switch) for about $200 or less on eBay, and pressurize it with 50 psi air instead of CO2, and then you'd have a stable 50 psi water out. And with a CO2 tank you could make soda after work.
"Fountain" soda - aka the type in a cardboard 'milk like' container is without water and soda. That is flat. It is syrup. If a baby has colic or gas on the stomach - get some from the fountain people - just a pint or less - and put it in a baby bottle with water. Make it just like to drink - the baby will drink it and the soda will absorb the gas. Been there done it. Grew up in a family of 5 kids.
I used to have a cold plate - big chunk of Al - that is for sure. And a Green high pressure bottle. Gave them away - soon after they were dumped on my driveway. Some kids got it somewhere - and I bet it was hot. My kid was 6 months old so it wasn't him or his. :-)
The one I had from COKE - had a one way value on the gas tank - I suppose that prevents problems.
I call flat coke that sits in a glass or out of a can that falls on the floor and foams all over. Coke is coke - coffee is coffee - as long as it has water in it
- it is just fine to me.
Martin
Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder
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