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2. Low-flush toilet - Wikipedia

   en.wikipedia.org/wiki/Low-flush_toilet

   A low-flush toilet (or low-flow toilet or high-efficiency toilet) is a flush toilet that uses significantly less water than traditional high-flow toilets. Before the early 1990s in the United States, standard flush toilets typically required at least 3.5 gallons (13.2 litres) per flush and they used float valves that often leaked, increasing their total water use.

3. Low-flow fixtures - Wikipedia

   en.wikipedia.org/wiki/Low-flow_fixtures

   Low-flush toilet (3212351477) Low-flush toilets use significantly less water per flush than older conventional toilets. In the United States, Older conventional toilet models, typically those built before 1982, can use 5 to 7 gallons of water per flush. Toilets from the era of 1982-1993 may use a somewhat smaller 3.5 gpf.

4. Dual flush toilet - Wikipedia

   en.wikipedia.org/wiki/Dual_flush_toilet

   Based on the WaterSense averaging rule over two reduced flushes and one full flush, a dual-flush toilet with a full flush at the US legal maximum of 1.6 US gallons (6.1 L) must have a reduced flush of 1.12 US gallons (4.2 L) or less to meet the WaterSense standard of 1.28 US gallons (4.8 L) on average. [17]

5. EPA WaterSense - Wikipedia

   en.wikipedia.org/wiki/EPA_WaterSense

   Using the efficiency standards established by EPACT92 as a baseline, the EPA instituted the following flow-rate guidelines for WaterSense: toilets must be manufactured with a maximum flush volume of 1.28 gpf; showerheads must have a maximum flow-rate of 2.0 gpm at 80 psi; and bathroom faucets must be manufactured with a low-flow volume rate of ...

6. Residential water use in the U.S. and Canada - Wikipedia

   en.wikipedia.org/wiki/Residential_water_use_in...

   Future reduction in toilet end use will occur as more homes use low-flush toilets (1.6 gpf, or 6 lpf) mandated by the 1992 Energy Policy Act, or high efficiency toilets (1.28 gpf or 4.85 lpf) which meet the EPA WaterSense specifications. A recent study shows that about 21 percent of all toilets in 5 states (Arizona, California, Colorado ...

7. Wait, exactly how many people work for the federal government?

   www.aol.com/news/wait-exactly-many-people...

   A version of this story appeared in CNN’s What Matters newsletter. To get it in your inbox, sign up for free here.. The US grew a lot in the past 40 years.