Ryobi OWS1870 Original Instructions Manual page 18

MAINTENANCE
9. Turn on the product.
10. Make sure to direct the spray toward
an area that will not be damaged by the
liquid. A container may be used to catch
the sprayed liquid. Press the trigger to
start the flow of liquid.
NOTE: Spray until the tank has been
completely emptied.
11. Wipe the outside of the spray tank with a
clean, dry cloth.
16
9
10
1
11
2