[MrBasse]

Is it easier to store vacuum or just generate what you need when you need it?

I'm not sure if a solenoid would work but it's worth a try. I know most require a minimum pressure to function properly, but a vacuum would achieve the same thing if plumbed in reverse.

We used a vacuum pump in 2013 to pick up frisbees. We had to be pretty darn precise with placing the manipulator though. But ours was from a Food Saver so it was pretty minimal amount of vacuum.