Quote Originally Posted by Airsporter1st View Post
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Probably better to start a new thread about how regs work. This one has run its course.
A regulator can be likened to a dam on a river. Behind the dam the water is at a very high pressure. The dam regulates the flow of the river to a controlled and constant state of flow, meaning that the water lasts longer instead of shooting through the river valley at higher speed.

Basically what a regulator does is regulate the flow of air so that it is at the optimum pressure for each shot!