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Halls High School has some new help to protect the environment while watering plants on school property.

Tuesday the school unveiled a new cistern. The device collects rain water and funnels it back into the greenhouses and outdoor growing areas.

It's the first device of its kind in Knox County schools. The cistern is expected to collect about 34,000 gallons of rainwater a year.

One teacher says it should provide a number of benefits.

"Whether it be for washing things, whether it be for waste products disposal, and not only that, I think it's great that we're using what's from the heavens for a great cause and a great purpose," said Mike Blankenship.

Right now they're using the water to help grow sweet banana peppers and habanero peppers.

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