Any used treatment remaining in the tank can be poured back into the paint vessel. Fill the sprayer with water and reseal as in step 3. Shake the sprayer to remove fluid from round the insides and then repressurise. Do not dispose of waste into drains or watercourses. Detach brush part (1088), wipe off any excess fluid with a cloth then wash with water. Spray water into an empty container and then flush down a sink. Repeat until the waste water runs clear. To ensure that the smaller components have been cleaned thoroughly we recommend that you clean the filters (904) & (664) and the seal (165) under running water using a hard bristle brush if necessary. Do not use wire, pins or similar sharp objects to clean or unblock the nozzle (665,666). This will lead to damage and a poor spray pattern. Ensure that all parts of the trigger mechanism (1090 & 1089) are also washed clean of any fluid. To avoid losing smaller components on storage we recommend that you attach 1090 & 1089 together. Ensure that liquid is completely drained from the sprayer and hose for storage. It is best to detach the hose (1091) from the sprayer tank and handset during storage.