recommendation for cheap hand vacuum tool

[jabcb]

Need a vacuum tool to operate a Pingel vacuum petcock.

Want to drain the tanks as part of winter prep on 2 bikes with the Pingel petcocks.
The Pingels don't have a prime position; they have on, reserve & off.

[Craig380]

Would it be easiest to remove the tank and pour most of the fuel out of the filler neck, then remount the tank and use mouth suction via a piece of hose on the vac take-off to get the remaining fuel out via the tap?

Mouth suction works a treat when bleeding brakes, too, but it's best to use clear hose so you can see when the brake fluid is coming through

[tz375]

Use a length of hose and a clamp. Apply mouth suction to open the tap and immediately clamp it to keep it open.

[Coyote]

I use a model airplane fueling bulb. Similar to a turkey baster. Squeeze the bulb, apply the hose, release the bulb. DONE!