Place several drops of red food coloring in your toilet tank. If the water in the bowl changes to red without you flushing it, you have a leaky toilet. You may need to replace the flapper or flush valve inside the toilet tank.
If your toilets are not leaking, check all of your water facets. A steady dripping faucet can lose as much as 15,000 gallons of water a year. That's enough to fill a swimming pool!
If you find no leaks in your toilet or faucets, you may have a leak in the wall or floor. Underground leaks can consume enormous amounts of water. An old galvanized pipe or copper pipe leaking in the ground may never be noticed. One customer wrote to me last year about losing 10,000 gallons of water in a month! They had to fight the water company for a reduction in his bill, which was over $2,000.
If you can't find the leak yourself, you may want to call in one of your local plumbing companies. The cost of having a 24 hour plumbing problem may end up being more than hiring a professional for the plumbing repair.
Roto-Rooter has licensed plumbing specialists that repair plumbing leaks. Roto-Rooter also has advanced equipment to quickly locate underground leaks.