Greeley officials have prohibited graywater reclamation, resulting in families potentially missing out on 20,000 gallons of water savings per year. The Greeley Tribune reports city council voted unanimously Tuesday for an ordinance prohibiting the collection and use of graywater in Greeley. City staff estimated graywater collection could save up to 20,000 gallons of water annually for a family of four, amounting to up to $138 in utility bill savings. Other costs to both the city and residents, however, mean such savings could take decades to pay off, according to city staff…