All installation details are governed by the local code authority and must be approved through one or more inspections. Determine the Elevations. DonNichols / Getty Images. Calculate the Slope. William Taufic / Getty Images. Dig the Trench and Lay the Bedding. Wicki58 / Getty Images. Install the Pipe.
The leading choice in residential drain lines over the past four decades, PVC is a light-colored, highly durable plastic that resists the elements and appears to outlast all other piping materials. PVC is made in several different grades: schedules 40 and 80 and chlorinated polyvinyl chloride (CPVC).