i dont suggest putting the regulator under water. there should be some type of gasket/washer in the connection from the regulator to the tank. another idea would be to shut off all the valves in the system, then starting with turning on the tank, open the vlaves one by one (slowly) and see if you can hear anything. you can use the soap and water as you do this as well. you might also inspect the entire co2 line for pinholes or anything that might look like it may leak.
-jomo
|