Haven't tried it literally. However when we are trying to push/pull the handle, there's air that's coming out around the lever so less air is coming out in the head part of the plunger. Hopefully, this will still works.
●Ergonomically designed sliding ABS plastic handle with a large force area for a comfortable grip.
●The heavy-duty toilet plunger delivers a powerful air pressure of up to 120 psi, ensuring fast and continuous blowing action to quickly solve clogged toilets.
●Effectively unclogs all types of pipes, toilets, floor drains, bathrooms, sinks, washbasins, vegetable basins, and drains. Say goodbye to blockages caused by hair, tea, grease, and more.