Switch to a Low-Flow Shower Head
Low-flow shower heads use 2.5 gallons per minute (gpm); older models use as much as 5.5 gpm. Make the switch and you'll reduce your water bill by 25-60% (US Department of Energy).
Take Shorter ShowersAim for a five-minute shower. With a low-flow showerhead you'll use 12.5 gallons of water or less. Compare that to 37.5 gallons for a 15-minute shower, and the savings is pretty easy to see.
Shower Instead of Taking BathsAccording to the Environmental Protection Agency, it takes 35 gallons of water to fill the average bathtub. Switch to a five-minute shower with a low-flow showerhead, and you'll save 22.5 gallons each time you scrub up!
Repair Faucet LeaksA leaky faucet can waste 1000-2000 gallons of water a year (National Sanitation Foundation).
Install a Faucet AeratorIt screws onto the bottom of your faucet to reduce water flow, without reducing water pressure. Note: If you have a newer faucet, it may already have one built-in.
Turn the Water Off While You Brush/ ShaveLess flow time equals less water used.
Check Toilets for LeaksAccording the National Sanitation Foundation, a leaky toilet can waste as much as 500 gallons of water each day! Place a dye tablet (free at home improvement stores) in the toilet tank, and watch to see if the dye seeps into the bowl. If it does, you have a leak that needs to be addressed.
Replace Your Toilet Flapper Once a YearToilet flappers break down quickly, and should be replaced once a year even if they say they're good for longer. A couple dollars spent on a replacement flapper will save you much more on your water bill.
Install an Adjustable Flapper
Several manufacturers now offer flappers that you can adjust to your desired flush volume. According to Niagara Conservation, an adjustable flapper can save up to three gallons per flush.