CO2 gauge problem

[Pescador]

You could add a needle valve after the gauges it will probably give you finer control anyway.
This Red Sea needle valve is working great for me.

[Jason McK]

I've heard similar issue with Milwaukee units

[mr.wilson]

Originally Posted by Jason McK

I've heard similar issue with Milwaukee units

There are some problems with Milwaukee regulators, but they seem to be caused by a problem with order of operations. You need to open the fine tuning valve all the way when you open the pressure valve, then slowly shut it to where it (fine tuning valve) needs to be. Otherwise you blow the seals. New seals are about $10 and easy to replace.

You can usually buy used, rebuilt regulators for about $50-75, so they can't charge much to rebuild them. From the description of the sticky needle, I agree with the other suggestion that a new gauge from Princess Auto might be the way to go. If it was a seal issue the emergency bypass hole at the back of the unit would be leaking air and the needle would go to the top of the gauge.