Showers can use as much as what percentage of the water used in a home?

• A. 10%
• B. 22%
• C. 33%
• D. 50%

Answer: (B)

Showers use a sizable portion of home water, and that share depends on how long you shower and the showerhead’s flow rate. On average, showers account for about one-fifth of indoor household water use, roughly 20%. That makes 22% a close, reasonable estimate among common options. If you switch to a low-flow showerhead and shorter showers, you can reduce this share even further. The smaller figure tends to underestimate typical use, while the larger figures would overstate it for many homes.