You just received your latest water bill and it's much higher than normal. You don't see any water leaking anywhere so what's going on? Here are a few things you can check to see if you have a water leak before you schedule to have it professionally located.
Your water pressure naturally fluctuates throughout the day. Water pressure drops in high water use times (i.e..: breakfast time) and rises when demand is low.
The city regulates water pressure at their pumping stations with special pressure regulating valves.