Prince William Water provides water and sewer service in Triangle, and lines and connections on private property are the owner's responsibility. If the line from your house backs up or breaks, a plumber handles the repair. Call the number on this page to be connected with a local plumber in Triangle.
Triangle conditions
Triangle is a southeastern Prince William County community wedged between Dumfries, Prince William Forest Park and Marine Corps Base Quantico, about 30 miles from Washington and home to the National Museum of the Marine Corps. Its housing is mostly newer, with a median build year of 1999, so the typical lateral is plastic. Problems in younger lines usually come from settling soil that leaves a sag, joints disturbed during later work, pipe cracked under driveways, and roots where wooded lots meet the line.
Prince William Water's Emergency Dispatch, 703-335-7990, handles after-hours problems and also takes requests to replace a damaged sewer cleanout cap. Customer Service is 703-335-7950 on weekdays. The utility locates lines from the main through the water meter box, but piping on private property is yours. Plumbing permits come from Prince William County Development Services.
Comparing repair options
| Option | When it fits | Keep in mind |
|---|---|---|
| Clearing with a cable or water jet | Debris, grease or roots in a sound pipe | Follow with a camera to confirm the pipe is intact |
| Spot repair | One separated or cracked joint | A small excavation at the defect |
| Lining | Cracks along a pipe that still holds its slope | Won't correct a sag |
| Re-laying a section | A belly where waste collects | Trench over the low spot |
Signs to act on
- The lowest shower or tub filling with dirty water
- Gurgling toilets when sinks or the washer drain
- Several fixtures slowing at once
- A cracked or missing cleanout cap with odor around it
Seasonal notes
Heavy summer storms can saturate the ground and push water into a line with an open joint, so a backup that appears right after a big rain deserves a camera inspection. In fall, leaves and yard debris can find their way into an uncapped cleanout. If sewage is actively coming up, stop using water and get help right away. If drains are just slow, schedule an inspection soon; sags and separated joints get worse as waste accumulates. Ask the plumber to save the camera footage. It's useful if the house is still under a builder or home warranty, and it gives a buyer's inspector something concrete if you sell.
Sewer Line Repair questions in Triangle
Who is responsible for the sewer pipe between my house and the public main?
Can the sewer line on a newer house still fail?
Do heavy summer storms cause sewer backups?
How can I tell a main line problem from one clogged drain?
More plumbing services in Triangle
Sewer Line Repair nearby
Helpful guides
Sources
Last updated: