As part of national Fix A Leak Week, Cascade Water Alliance and the City of Issaquah plan to send send toilet leak detection mailers to about 100,000 homes throughout the county March 12.

The average American home wastes around 10,000 gallons of water each year from running toilets, dripping faucets and other household leaks, according to a Cascade press release.

The mailers include dye strips that help determine whether there is a leak. For more information on leaks and other conservation programs visit www.cascadewater.org.