The Handle should tightly squeezed with the bottle. Once the Handle is Fixed in a tight way, and Pumping is done 20 times for the next 10 seconds or more in a soft manner, then the sprayer works fine. If the handled is loosely fitted, the air leaks out and pressure not generated. The Main way to use this product is fit the Bottle to the Handle in a tight manner and pump it several times then air bubbles will start generating in the bottle once pumping starts. Please fill the water till the Max level indicated on the Bottle. Please do not disassembles the inside fittings of the Handle