Make your old toilet a water saver. Reduce the volume of each flush by placing a toilet dam or a water-filled plastic bottle weighted with gravel in the tank if you have not already installed a 1.6 gallon toilet. Just be sure not to interfere with the flushing mechanism.
Install water efficient showerheads and faucet aerators. These devices can reduce the flow from 3 - 7 gallons or more per minute to just 1.5 - 2.5 gallons per minute. Water conservation kits are offered free of charge. Just fill out the request form found on www.MWRA.com.
Install low flow toilets to save thousands of gallons each year. Replacing a pre-1980 model that uses 3.5 gallons per flush saves 1.9 gallons or 54%!
Check your toilet for leaks. You may not be able to see or hear a leak but a leaking toilet could be wasting 50 gallons of water a day. To test for a leak put a few drops of food coloring in your toilet tank. Do not flush. If colors appears in your bowl within 10-15 minutes you have a leak. To repair it, the flush valve ("flapper") or the valve seat may need to be cleaned or replaced. Parts are inexpensive and easy to install.