Winterizing Spray Equipment Now Will Pay Off Next Spring | Local news from the Big Island
Winterizing spray equipment can be a tedious job, but taking some time out this fall can save you a lot of headaches next spring.
The first thing you want to do is look at the pesticide label of the products used during the last growing season and determine the appropriate PPE to wear. Once you are properly equipped, drain the tank and fill it to about 15-20% of the total tank volume with clean water.
Circulate this water throughout the system and dispose of the collected rinse water according to the instructions on the pesticide label. Triple rinsing the system ensures that residual chemicals are removed, but the addition of a cleaning agent can also be helpful when cleaning the sprayer.
When filling the tank for the second time, it is recommended to add a cleaning agent if recommended. You will want to consult the label of all pesticides used in the tank to make sure the cleaning agent is compatible and appropriate for the tank. Depending on the quality of the sprayer, some pesticides can last longer in the system by getting stuck in pits in the tank or pipes. A cleaning agent can help remove these residual chemicals from the system and prevent problems with transferring next spring.
After the cleaning agent has been in the system for an appropriate amount of time (see label for instructions), flush the system a third time with clean water. You will also want to remove any extra parts from the sprayer (nozzles, screens, filters, sprayer nozzles, nozzles, etc.) to allow for proper drainage. These parts should be thoroughly cleaned before putting them back on the sprayer.