了解水暖的基礎！
Understanding The Basics of Plumbing!
Be Prepared Learn How Plumbing Systems Work In Your Home.
Your home's plumbing system may seem very complex. But once you know these plumbing basics, you'll gain a better idea of your home's plumbing.
Plumbing follows the basic laws of nature gravity, pressure, water seeking its own level. Knowing this, you can understand its "mysteries" and make dozens of fixes to your home's plumbing system. You can save yourself time, trouble, and money!