Polyvinyl chloride, or PVC, pipe is used by many homeowners and contractors for various types of underground plumbing lines. Many consderations must be factored in when laying PVC pipe underground. However if you follow the regulations laid out by your state for depth and spacing, your underground PVC pipe will be laid in no time.
Things You'll Need
- Shovel or back hoe
- PVC Primer
- PVC Glue
- PVC Pipe
- PVC Couplers
- PVC Fittings
- Underground warning tape
Lay Your Pipe
Mark out the location of the underground piping. Use stakes and string to mark the location of the pipe from beginning to the end. This will not only act as a guide while you dig, it will also tell you how much length you will need.
Soften the ground with water for two days before you begin to dig.
Calculate the depth of the trench you need to dig for the pipes. All states require 18 inches from the top of the pipe to the surface and at least a foot from any other underground pipes. Professionals suggest PVC pipe be laid above at least two inches of underlayment. Underlayment can be made of rocks, concrete or plastic. To calculate the depth of the trench, add two inches to the diameter of the pipe and then add 18 inches to the total. This will give you the depth of the trench in inches.
Dig the trench. Soften the ground with water as you dig. This will reduce the amount of dust in the air. Any trenches more than 100 feet long should be dug with professional digging equipment.
Add two inches of underlayment to the bottom of the trench and pack it down with a shovel.
Lay out the PVC connectors and fittings beside the trench. Apply PVC primer to any parts of the pipes that will be inserted into a fitting or connector. Allow the primer to dry.
Coat all the areas that have primer with PVC glue. Insert these pipes into the fittings and connectors allow the glue to dry and lay the pipes into the trench. Connect the pipes to the waterlines or appropriate outlet.
Add two inches of dirt on top of and around the laid pipes. Pack the dirt in as tight as possible and stretch the underground warning tape over the length of pipe. This tape will keep anyone from digging into the pipes.
Fill in the trench with dirt until the ground is even again.
- Photo Credit Jupiterimages/Photos.com/Getty Images
How to Lay Out Basement Bathroom Plumbing
For many homeowners a basement is the perfect way to add square footage to an existing home. Often a homeowner will decide...
How to Pour Concrete Around PVC Pipe
Pouring concrete around PVC pipes can be useful in a variety of household and industrial applications, such as building garden ponds or...
How to Clean Out Pipes
Old home water systems sometimes start filling up with sediment after years, with the water stream notably diminished. It's no coincidence that...
How to Bury a PVC Pipe
Determine the minimum depth at which the pipe needs to be buried. If the pipe is to be used in a non-traffic...
How to Connect 1 1/2 PVC to Flexible Pipe
Rigid PVC pipe and any flexible type of pipe are made of dissimilar plastics, and therefore cannot be glued together. The most...