When I tried it, there was no spray. (If you bought one, you may have low or no spray pressure, so read on. If you haven't bought one, consider another product, or this may happen to you, as well.) After much wasted time, I decided to try turning the cannister upside down, Voila! Spray. This led to the conclusion that something was wrong with the inner tubing. After checking, the tube inside the cannister connecting to the cap seemed loose. To tighten it, I cut the tubing about 1/2 inch shorter. This gave a snug fit, and the sprayer works now as it should.