It is obvious on my Mityvac that the handle is spring loaded and will always return to the out or up position. It would be pretty difficult to pump a vacuum, if after each down stroke the operator would have to manually pull the handle back. Seems pretty normal to me. Are you using the Mity Vac to get a syphon going? That might be possible if you tie the handle down. Again it sounds pretty normal too me.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!