【Usage Tips】 1. Fill the bottle with hot/warm water before adding soap. This will help you better mix the foam. 2. Adjust the knob on the top to control how much water is mixed in. 3. Adjustable consumption of snow foam cleaner, variable angle spraying pattern from pencil to 60° fan. 【Attention】 1. Please check adapter size and make sure it fits your machine. If you are not clear, please contact us, we will help to choose the suitable adapter.