Faucets that drip constantly need new washers to make a tight seal when the faucet is closed. Homeowners should call a plumber if they don't know how to make this relatively simple repair themselves.

To check a toilet for leaks, Jim Scarbrough with DWR recommends putting a drop or two of food coloring in the tank. If the color shows up in the bowl within a few minutes, it means the flapper is leaking. If the flapper is okay but you can hear water running, the problem is likely to be the water inlet valve. Repair parts are available at most hardware or building supply stores.

Another way to find leaks is to look at the water meter outside. If the triangular indicator is moving when no water is being used inside, there must be a leak somewhere. Soggy or unusually green spots in the lawn can indicate an underground leak in the service line coming in to the house, which is the homeowner's responsibility. Checking the meter when the main shutoff valve is closed inside the house will confirm an underground leak.

Gwinnett's very successful rebate program for replacing old, inefficient toilets is still in effect, Scarbrough said. It pays between $50 and $100 depending on the efficiency of the new toilet. Details are available at toiletrebate@northgeorgawater.org or by calling (404) 463-8645. More water-saving tips for homes and businesses are under Water Resources at www.gwinnettcounty.com or (678) 376-7000.