Details of piping of bathroom in AutoCAD, dwg file.
<p>This Architectural Drawing is AutoCAD 2d drawing of Details of piping of bathroom in AutoCAD, dwg file. A <strong>three-inch</strong> pipe is what's used in homes to pipe toilets. The four-inch pipe is used as the building drain under floors or in crawlspaces to transport all the wastewater from a home out to the septic tank or sewer. The four-inch pipe may also be used in a home if it's capturing two or more bathrooms.</p>