Instruct: Classify a review into positive or negative sentiment.
Query: Does not work!

I purchased 2 of these from Amazon soI would be able to use with differentchemicals for different applications.Neither one of them work! It says topump 15-20 times. Well, pump 100 timesand you may get one "squirt" out of it,then back to more exhausting pumpingon the plunger.Save your money, I tossed both in the trash.Would I recomment this product?NO!