Both models of the X-Jet nozzle will come with a pack of colored proportioners.  Do not throw these away!  A proportioner can be inserted into the X-Jet nozzle to meter the amount of soap and/or chemical that is drawn up through the chemical hose . If you choose not to use a proportioner, then realize that you will go through a larger amount of chemical.  Use the proportioner chart to determine which color is the best suited for your needs.  The proportioner should fit into the hose barb end of the nozzle.  This is the part where the chemical hose is attached.  The proportioner will have a little play in it and as water pushes up against it, the proportioner will become more seated in the nozzle and won't wiggle as much. This is all very normal.

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