Showerhead leaks usually occur for two reasons, either the washer inside the showerhead is damaged or worn, or the little holes in the showerhead or internal parts are encrusted with lime and other mineral deposits.
According to the Environmental Protection Agency (EPA), a showerhead leak can waste as much as 3,000 gallons a year, and that's not just water going down the drain; it's money out of your pocket.
After a while, water running out of the showerhead will begin to back up and look more like a waterfall than a shower spray, and leaking will occur long after the shower is turned off.
Most showerhead problems are easy repairs, and taking a few extra minutes now to repair a drip can save you money and help preserve valuable water resources.
Lower showerheads - when a showerhead is fitted high above a shower, a lot of water is wasted as the water is sprayed a greater distance.