Over 40 yrs ago I gave a home party of either Stanley products or Fuller Brush, I can't remember which now. Anyway, they sold a plunger product with the plunger part having several "suction" areas to it. This product was sold as a washing machine substitute to "hand" wash your items when a machine was not available. It worked well, so I'm sure a regular plunger would do the trick also. Wait long enough and everything comes around again.
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