Removing Cap for Servicing Nozzle and Filter
Lift riser up
Grasp riser and remove cap by hand
Tighten torx screw on cap after reassembly to mitigate leak at the screw
Clogged filter can cause shortened stream distances or uneven spacing
Remove cap as shown and clean filter (depending on your version, filter may be flat or conical) and or nozzle
Line up filter marks with nozzle opening (filter points down)
Hand tighten cap back onto riser
For reassembly, make sure filter markings line up with nozzle opening