Go for the individual regulators as Rev2010 linked too. I used a singe regulator for two kegs and found out fast two things:
1. You can't carbonate just one keg as both kegs (or in your case, 4 kegs) would get the same amount of pressure and one beer would over carbonate
2. Each beer style needs a different dispensing pressure. What one beer dispenses at with no foam say at 6psi may make another beer in another keg foam out each time you poured.
I am relatively new to kegging, but this has not been my experience.
I do 3 kegs through a manifold and the beers carbonate to about the same amount.
I will eventually get a system to carbonate each to style.
When you have one keg that is already carbonated and one that you just finished fermented that needs to carbonate, then it poses a problem. You need a higher pressure to carbonate (there is a chart somewhere) different beers. Once the beer is carbonated at that higher pressure, you then lower the pressure to "serving" pressure as to not over carbonate the beer.
At least this has been my understanding fro some time now.
So is it ok to turn on the gas, set at 10 psi and pull the gas of and use the tank on another keg for a few days till it carbs up? what if i have 4 kegs and only 1 tank? I guess I have to buy another soon.
If you are burst carbonating then you will need different pressures. If you set it and forget it then it won't matter. You can carb and serve at the same pressure and temperature. Just pickup a 4-port manifold and brew on!
If you do this, it will fill the head space with 10 psi, which will eventually saturate the beer and equilibrium will maybe make the entire keg 1-2 psi. Maybe if you hit it every day with 10 psi for several weeks.
If you leave the valve open the regulator will keep the pressure at 10 psi.
Force carbonating my first Corny of high gravity IPA tonight. Guys at the LHBS advised getting the beer as cold as possible (just set it outside since it's right at 32 degrees F. tonight) and then hitting it with 30 psi. Once it stops taking the pressure they said to agitate it for 3 minutes and then take a taste to see if it's enough for that beer. Of course don't forget to turn the pressure way back down for dispensing. Sounded simple enough for getting the CO2 into the solution but I am a bit curious to see what happens when I hook up a 2nd keg of wine coolers that I made for da wife.
1. You can't carbonate just one keg as both kegs (or in your case, 4 kegs) would get the same amount of pressure and one beer would over carbonate
2. Each beer style needs a different dispensing pressure. What one beer dispenses at with no foam say at 6psi may make another beer in another keg foam out each time you poured.
When you have one keg that is already carbonated and one that you just finished fermented that needs to carbonate, then it poses a problem. You need a higher pressure to carbonate (there is a chart somewhere) different beers. Once the beer is carbonated at that higher pressure, you then lower the pressure to "serving" pressure as to not over carbonate the beer.
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