What should be used to clean a clogged spray nozzle?

Cleaning a clogged spray nozzle is essential for maintaining effective application and ensuring that pesticides or other liquids are dispensed accurately. The use of a wooden toothpick is an appropriate choice because it is a gentle yet effective tool for clearing out debris or blockages in the nozzle without damaging it. The wood is soft enough not to scratch or break the nozzle's components while being firm enough to dislodge material that may be causing the clog.

Using materials such as a small brush may be too abrasive depending on the brush's hardness and the nozzle material, which could lead to damage over time. Compressed air can also clear a nozzle, but it might not remove solid blockages effectively and can potentially blow debris into unwanted areas. Chemical cleaners, while effective in dissolving residues, may be inappropriate for use directly in spray nozzles, especially if residues could react poorly with the nozzle material or affect the following applications.

Thus, employing a wooden toothpick provides an effective and safe method to ensure that nozzles remain functional without risking damage or improper cleaning techniques.