Question 6017 of 406 · Illinois Pesticide Applicator General Standards Exam
What is the best protection against back-siphoning when filling a sprayer tank from a well or hydrant?
Exactly one answer is correct.
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Correct answer to question 6017
- C: Keep an air gap between the end of the fill hose and the liquid level
Explanation
An air gap makes it physically impossible for tank contents to be siphoned back into the water source. A submerged hose is a common cause of contaminated wells and water lines.
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