If you have a water meter, and if your home plumbing develops a slow water leak, one you don’t notice, your bill will climb. Keep tabs on the consumption on the bill, comparing it to normal. Otherwise you risk getting a big surprise on your water bill payment one day. A bill could easily be a couple of hundred dollars higher just for the leak, especially if your paying for both water and sewer when both costs are based on the water meter reading. Toilet leaks that run 24/7 are a most common cause of this sort of thing. Fortunately, you can hear toilet leaks during the night when the house is quiet if you listen while …well you know.