• After spraying, clean the tank thoroughly. If some spray liquid is left inside, drain tank completely.
• Pumping causes air to be taken in and the remaining liquid to be discharged. Pump until liquid and air are coming out through the nozzle.
• Refill tank with a few quarts of clean water and pump the water out as explained above (if necessary, repeat this procedure several times).
• If the shut-off valve is removed, the pump can be flushed quickly. Improper spray distribution is the result of a clogged nozzle, which is easily removed and cleaned.
• Soap and water may also be used to clean tank.
• Do not use aggressive cleaning agents or abrasives.
• Follow the recommendations of the chemical manufacturer for disposal of waste water and chemicals.
• Activated charcoal in liquid or other form may be used to absorb chemicals in tanks or spills.

NOTE: When cleaning the sprayer after working with hormone weedkillers, follow the instructions of the herbicide producers. Neutralize with activated charcoal. (Example: add 0.35 oz./1 g. of activated charcoal to 1.7 pint/1 liter of water and leave this detergent in the tank and the lines approximately 24 hours.) This is very important if other chemicals should be sprayed as the residues of the herbicide may damage susceptible plants. Cleaning after application of products containing carbolineum, if they are not water soluble, should be done with a 5% soda lye having a temperature of 104°F (40°C). Rinse with plenty of clean water.