I sure know about this kind of thing. The maple tree that was in my yard caused 
a lot of damage to the drain line, enough that a section of it had to be 
replaced.
David Ferrin
----- Original Message ----- 
From: Ray Boyce 
To: [email protected] 
Sent: Tuesday, August 28, 2007 5:16 PM
Subject: [BlindHandyMan] Pain in the Drain, Tree Roots


Pain in the Drain | Tree Roots

Mature trees add beauty and shade to landscapes, but their roots can cause 
extensive damage to sewer pipes. Roots grow into the pipes because they like
it there! Sewer pipes contain water, nutrients and oxygen-the essential 
elements for trees to grow. Aside from sewer blockages and backups caused by 
FOGG,
tree roots growing inside sewer pipes are one of the most expensive sewer 
maintenance items experienced by our customers. Roots from trees growing on 
private
property and on parkways throughout the service area are responsible for 
many of the sanitary sewer service backups and damaged sewer pipes.

Each homeowner is responsible for maintaining their sewer laterals-the pipe 
that connects the sewer pipes in the house to the main sewer pipe, which is
usually in a street. Because the pipes are buried and out of sight, 
homeowners usually don't have any clues to potential problems in their 
laterals until
it's too late.

The flow of warm water inside sewer pipes causes vapor to escape to the 
cooler soil surrounding the pipe. Tree roots grow toward the vapor to the 
point
of its source. The source of the vapor is usually cracks in the pipes or 
loose joints. Once the tree roots reach the crack or loose joint, they will 
grow
through the opening to reach the plentiful nutrients and moisture inside. 
Once inside the pipe, the roots will continue to grow, and if not disturbed,
they will eventually completely fill the pipe with hair-like root masses. 
These masses can act as a net as they catch household fats, oils, grease, 
grit
(FOGG), tissue paper, and other debris discharged from the residence.

Slow flowing drains are the sign that the system is having a problem from 
roots. Homeowners will notice the first signs of a slow flowing drainage 
system
by hearing gurgling noises from toilet bowls. A complete blockage will occur 
if no actions are taken to remove the roots/blockage.

As roots continue to grow, they expand and exert considerable pressure at 
the crack or joint where they entered the pipe. The force exerted by the 
root
growth will break the pipe and may result in total collapse of the pipe. 
Severe root intrusion and pipes that are structurally damaged will require 
replacement.

Homeowners should be aware of the location of their laterals and sewer 
cleanout pipe, and refrain from planting certain types of trees and hedges 
near the
sewer lines. Trees should be located more than 10 feet from sewer lines to 
minimize root intrusion. Also, homeowners should choose small, slow-growing
species with less aggressive root systems, and to replace them before they 
get too large for their planting area.

What you can do if you have tree roots in your lateral
Once roots are in your lateral they will likely eventually cause a blockage. 
The best way to prevent this is to schedule regular cleaning of your sewer
lateral. The common method of removing roots from sanitary sewer service 
pipes involves the use of augers, root saws, and high-pressure flushers. It 
is
also important to keep your sewer lateral structurally sound. Any structural 
fault can allow roots a way into your sewer lateral. You may wish to hire
a plumber to video your sewer lateral to determine its condition and if any 
repairs are needed. 



 

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