Should you install it yourself?

Installing new fixtures requires careful planning as even small errors can lead to big problems. Most improvements the do-it-yourselfer will make are add-ons, where you simply hook new fittings or fixtures to existing pipes. This is not as easy as it may sound. Before you try something that requires a plumber's license, like running new water lines, you'll need to understand how supply, drain, and vent pipes work. Don't despair, however. There are a ton of very useful plumbing how-to books available at your local home center, bookstore, public library, and on the internet.