[77newell]

I don't really understand the need for the check valve as you guys have described it since the Gast pump has to have internal check valves, in the form of leaf valves or reed valves in it in order to function. If the pump is to work at all efficiently those valves have to prevent any reverse flow at all. Even the idea of reducing starting load would work only if there were some leak in the system to bleed off pressure before starting. I'm inclined to believe something else is went into the thinking of including the check valve but I'm clueless, most of the time anyway.