its probably to check press like flat said, on the one i run you can check press before and after on the regulator.
I like the product engineering myself.
productengr.com
you are right chris. the pump has the bypass.
its probably to check press like flat said, on the one i run you can check press before and after on the regulator.
I like the product engineering myself.
productengr.com
i have both pumps...one from aero and the 460 from product.....both work great...both overpriced.