Since 1990, toilets in new construction projects have been required to use no more than 1.6 gallons of water per flush — a measure designed to save water.
Some newer low-flow toilets use just 1.3 gallons per flush, while some newer urinals use just half a gallon per flush, or no water at all. While successful as a water conservation measure, these changes have created some issues downstream. For example, buildings in numerous communities have unpleasant odors, as the deficiency of water released to the sewer system causes sludge to build up inside the pipes.In the Ohio village of West Unity,
