Most Triangle homes are fairly new, with a median build year of 1999, so hidden leaks usually come from fittings, valves and connectors rather than old pipe. A higher water bill or a meter that keeps moving is the common clue. Call the number on this page to be connected with a local plumber in Triangle.
Triangle conditions
Triangle sits between Dumfries, Prince William Forest Park and Marine Corps Base Quantico, home to the National Museum of the Marine Corps. Prince William Water names Triangle among the eastern Prince William communities it supplies with Occoquan Reservoir water treated at Fairfax Water's Griffith plant. Virginia American Water also runs a separate Prince William system, so confirm by your bill if unsure.
Under Prince William Water's rules, lines and connections on private property are the owner's responsibility, and the utility locates lines from the main through the meter box. It states that all distribution systems and service lines it owns are non-lead, while customers are responsible for their own home plumbing. Its water is rated moderately hard, which it defines as 61 to 120 mg/L, and it uses chloramine most of the year with a switch to free chlorine in spring that can briefly change taste and smell.
In homes built around the turn of the century, the usual leak points are water heater connections, supply stops, toilet fill valves, shower valves and fittings inside finished basement walls. Those parts are easy to overlook and slow to show damage, so a leak in a house this age often runs for weeks before anyone notices a mark on the drywall.
Options once the leak is located
| Finding | Common repair | Consider |
|---|---|---|
| Drip at a shutoff valve | Replace the stop | Swapping other stops of the same age |
| Water heater connector seeping | New connector | Checking the tank's age and relief valve |
| Leak inside a wall | Open, repair, dry, close | Moisture readings before closing |
| Service line leak in the yard | Repair the joint or section | Replacement if the line keeps needing patches |
Signs to watch for
- Bills higher than the same month last year
- Meter moving with all water off
- Musty smells in a closet or basement
- Water around the base of a toilet
Seasonal notes
Cold snaps can split pipes in garages and exterior walls, so check the meter after a freeze. In spring, a chlorine smell during the utility's disinfectant switch is normal and not a leak sign. For main breaks or water surfacing in the street, call Prince William Water's emergency dispatch at 703-335-7990; customer service is 703-335-7950.
Leak Detection questions in Triangle
Who is responsible for a leak between the meter and the house?
How can I find out what my service line is made of?
Can a fairly new house have a hidden leak?
Do I need a permit to repair the leak once it is found?
More plumbing services in Triangle
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