[adciv]

Have you traced where the leaks are occurring? Below is how we find pneumatics leaks:

1) Take eyedrop bottle of water+dish soap
2) Drop soapy water on *every* pneumatics connection and component in the system (both insertion tubing and threaded fittings).

We've also found all threaded fittings need plumbers tape applied regardless of the way it comes from the manufacturer. Check your solenoids for leaks as well. We use SMCs and have had to tighten ours on the manifolds to eliminate leakage.