Some tips for using the foam gun correctly : a. Fill the bottle with hot/warm water before adding soap. This helps your solution mix together. b. Adjust the spray nozzle first to find the stream of water that works for you. You can adjust it so that it sprays in a decent fan pattern. c.Adjust the knob on the top to control how much water is mixed in. The minus (-) sign indicates less water (so more foam is produced), and the (+) indicates more water (so less foam is produced).
d.DO NOT max out the knob onto the (-) side otherwise you wont get much foam. You can turn it all the way to the (-) then dial it back a little, this produced a ton of foam.