Check for Leaks
Check all toilets and faucets! Leaky toilets and faucets are the biggest cause of wasted water, resulting in large water bills.
The most common source of leaks is the toilet. Check for leaks by placing a few drops of food coloring in the tank, if after 45 minutes the dye appears in the bowl, the toilet has a leak.
Leaky toilets can usually be repaired inexpensively.