MN Landscape Practice Questions - Minnesota Landscape Contractor License Exam

When installing a landscape irrigation system in Minnesota, what is the primary concern regarding backflow prevention?

Preventing water from flowing backward into the public water supply, which could contaminate drinking water Ensuring water pressure remains constant throughout the system Reducing the water bill by preventing wasteful backflow Maintaining even distribution across all sprinkler heads

Correct Answer:

Preventing water from flowing backward into the public water supply, which could contaminate drinking water

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