Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Hope your arm is strong!!
Review: This sprayer really works pretty good, though the capacity is so small. It takes about 50 strokes to get adequate pressure after filling, and you must repump after a few minutes of spraying because the pressure will drop. I also had problems with air leaking from the piston which allowed me to exercise my arm even more. Still, I was able to finish my project and even had a well-exercised arm to boot!!
