I have found an old school 30 or 40 lb Surge milker for sale at a good price. I am wanting to use it to milk our goats. The milker doesn't come with a vacuum pump. I can't seem to get a clear answer as to what would be the smallest pump that would make it work effectively. The person selling it had a large pump on wheels that could run several milkers at once, so he is unable to tell me what the minimum size should be. Here is a pic of it. It appears to be in great condition and well maintained. [/img] Does anybody have any reccomendations as to what size would be sufficient? Would a Oil equipped, 6 CFM, 1/2 HP, Single Phase work? Thanks.