Also, by John P.The JBJ has a fixed working pressure, has nothing so to speak with the amount of C02 coming out of the needle valve. A regulator runs a a certain pressure. With the JBJ it automaticaly ajusts to the working pressure, with the Milwaukee you have to manually set it.
The JBJ also has a built in metal check valve. The Milwaukee has no check valve at all, so you need to add one. Cheap plastic check valves do not hold up well under pressure. They are actually made for air line tubing. Good quality check valves can run 30 to $75. There is only about a $10 difference between the JBJ and the Milwaukee. The best $10 you could ever spend.
Good enough answer? :wink:The (helpful) guy on the phone said "as long as I have you on the phone, let me tell you to put black tape over the gauge on the right." I asked why, and he responded that it:
-isn't accurate b/c of the low flow rate used in aquarium setups
-that customers should use the bubble counter instead to gauge the amount of Co2 going into the tank
-that customers should open (counter-clockwise) the needle valve fully, adjust flow with the main knob to get the fow where you want it, and then adjust with the needle valve. (All this b/c it seems the needle valve will yield inconsistent flow if it's used to contain too much pressure).
Yes, you can break the bubble counter if you're not careful due to the thread lock they use, a heat gun will help, just use it carefully and it does come off.TWood said:Have you ever removed the Milwaukee bubble counter and done that? It's my understanding that it will break before it comes off. But that would be a good solution. Can you sell them disassembled with an appropriate check valve at a competitive price? Not an inline check valve either, one that screws in place.
Well, I disagree. =) I have a Milwaukee and investigated this throughly. The water in the bubble counter just won't back up against a fully pressurized CO2 bottle. Plus there has to be a pressure forcing this water thorough. A check valve after the bubble counter offers this protection.TWood said:Regarding the issue about the check valve. On the JBJ the check valve is between the bubble counter and the rest of the assembly. This seems like the best place since it will also keep the water from within the bubble counter itself from draining out into the rest of the assembly. Adding a check valve to the Milwaukee -after- the bubble counter wouldn't provide this protection.