Quote:
Originally Posted by Hodge
Will this change when using it as a return or is it pressurized due to the Venturi system?
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Yes it is pressurized due to the venturi system. So return or returnless doesnt change it, that only changes how long the plumbing between the regulator and the venturi is. The venturi system operates on a principle of pressure differential, so to relieve the backpressure would be to kill the venturis.