How do roots destroy pipes in Mesa and Chandler yards?

1. 1A small opening exists. Traverse City's tree root guide says roots are attracted to the water vapor leaving a pipe and follow that vapor trail to the source, which is usually a crack or a loose joint.
2. 2Roots enter. Once inside, they reach the nutrients and moisture in the flow.
3. 3A root ball forms. The City of Phoenix says roots find their way through pipe joints or other openings and form a root ball once inside. The ball then catches paper, grease and debris.
4. 4Flow slows and stops. The pipe clogs, sometimes with sewage backing up into the house. The first signs are described in signs of tree roots in a sewer line.
5. 5The pipe deteriorates further. Roots widen the opening as they thicken, and a pipe that leaked a little now leaks a lot. Traverse City notes that severe root intrusion and structural damage require replacement.

Phoenix ranks roots from trees and invasive shrubs, such as oleanders, as the second biggest problem in its sewer lines after grease. If you have oleanders near the line, that is worth knowing.

University of Arizona Cooperative Extension guidance, quoted in the Arizona Daily Star, names mesquite and palo verde among the trees whose roots cause sewer pipe problems, and says mature tree roots typically extend 2 to 3 times the width of the crown. It suggests white thorn acacia, ironwood, Texas ebony and, where space is limited, desert willow as lower-risk choices, and reminds readers that even native desert species need some water. Extension does not say to rip out old trees. Its advice for existing trees over pipes is to watch and inspect, and to wait and see if a problem presents.

That last point is useful. A healthy old mesquite is not a plumbing emergency. A sewer line with a camera record and clean joints can live with a tree for years. Trouble starts when the pipe leaks, which is why the pipe's condition matters more than the tree's species. A camera pass tells you that condition directly, so a tree over a sound, tight line is a different situation from the same tree over a cracked one. If you are choosing new plants, keep the extension list handy and check the mature size before you buy, because a small nursery pot says little about the root spread a tree will have in twenty years.

Mesa's wastewater guidance says to plant trees more than 10 feet away from sewer lines. That is a floor, not a promise. The extension figure of 2 to 3 times the crown width tells you a large tree's roots can reach well past 10 feet. Phoenix adds that a tree or large shrub should not go over or near the sewer line or the cleanout for your home, or so close to the house that roots can invade the foundation.

Use these rules when you plant:

• Find the line first. Locate the cleanout and picture the line running from it to the street.
• Pick smaller trees near the line. Choose species that stay compact.
• Keep the cleanout clear. You will want a plumber to reach it. See what a sewer cleanout is.
• Call before you dig. Arizona law requires a call to Arizona 811 before excavating, and that includes planting a tree.

In Mesa, the city code says the property owner is responsible for cleaning, unstopping, maintaining and repairing the building connection from the home or building to the public sewer. There is one exception: where a damaged or broken section is off-property in a street or alley, the city makes the repair. The owner has to identify and locate the damaged section, and Mesa's form says the best way is a licensed plumber with an inspection camera. The recording can be given to the city if the damage is off-property. Chandler homeowners should check Chandler's rules with the city's Utility Services Division, which lists a number of 480-782-2280, because the details differ from city to city. For Phoenix, see who is responsible for the sewer line in Phoenix.

Mesa's Sewer Blockage Inspection and Removal Service will send a technician to check whether the city main is flowing freely, but its form says the homeowner has to provide access through a cleanout or exposed line. See can a sewer line problem cause several drains to back up.

Clearing the roots restores flow, but it does not seal the opening, so they return. The order that works is: clear the blockage, camera the line, then decide between watching it, lining it and replacing it. Read does hydro jetting keep tree roots from coming back for why cleaning alone falls short, tree roots in a sewer line: repair or replace, and full reline, partial reline or nothing. Buying a house with a mature yard? Read roots in old clay sewer pipes when buying.

### Three examples of how it plays out

These are made-up examples to show the reasoning, not real jobs.

A mesquite 8 feet from the line, and no symptoms. The tree is closer than Mesa's 10-foot advice, but nothing is slow or gurgling. Extension's guidance for a case like this is to watch it. Locate the cleanout, keep it clear, and have the line scoped if a drain ever slows. See what a plumbing camera inspection can find.

Slow drains twice in a year, oleanders along the property line. The kitchen and a bathroom drain slowly, then the toilet gurgles. That pattern points at the main line, and oleanders sit on Phoenix's list of root troublemakers. Clear the line, then camera it to see whether roots are entering at a joint.

Roots cleared last spring, backup again this fall. Clearing removed the root mass but left the opening. The camera shows where roots re-entered. The choice is now a repair, not another clearing.

### What to ask for when roots are found

• The video. It should show where the roots enter and how far along the line they run.
• Distance from the cleanout. With it, a plumber can locate the spot from above ground.
• The pipe material. Older clay and cast iron fail differently from newer plastic.
• A written recommendation. Watch, line, or replace, with the reason.

Roots can reach water lines and irrigation lines too. Watch for wet spots, a sudden rise in your water use, or a drop in pressure, and see how to do a water meter leak test.

HQ Plumbing gives free estimates and upfront pricing. We can camera the line, show you the footage, and tell you whether the tree or the pipe is the problem.