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Green Plumbing

Category - Caring for Our Water

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Which is not a key feature of some highly-efficient toilets?

Meet EPA flushing guidelines of 1.28 gallons per flush or less
Siphon-action water jets
Self-scrubbing under-rim brushes
Vacuum-assist flushing mechanism

Explanation

Answer: C - All highly-efficient toilets meet the 1.28 gallon EPA guideline, and some include advanced technologies such as siphon-action water jets and vacuum-assist flushing mechanisms to help achieve top-notch flushing performance even with very little water.

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