PVC Pipe Leak Detection & Repair

PVC pipe leaks in Smyrna cover two distinct use cases: interior drain, waste, and vent systems inside the home, and exterior buried laterals in the yard. Each fails differently, is detected differently, and is repaired differently. What PVC shares across both applications is that it does not corrode like the galvanized steel and copper it replaced, but it is not failure-proof. Solvent-welded joint failures, UV degradation in exposed sections, and Georgia red clay's seasonal movement all produce PVC failures across Smyrna's housing stock.

PVC drain systems became widespread in Smyrna construction starting in the mid-1970s and became dominant by the 1980s. Homes in Wynfield, Brookhaven Smyrna, and Concord Place built in the 1990s and early 2000s use PVC drains throughout. These systems are now 25 to 35 years old, which is within the range where original solvent-welded joints begin to show delamination, particularly at connections that experience thermal cycling from hot-water drain lines.

Interior PVC Drain Leak Detection

Interior PVC drain leaks are most commonly found at three locations: the trap under a fixture, the drain outlet connection at a floor drain or fixture, and the hub connections along the main drain stack. A slow drip at a basement drain connection in a finished ceiling can run for months before the drywall stains through.

We investigate interior PVC drain leaks with a combination of visual inspection at all accessible joints, drain dye testing to trace flow paths, and camera inspection of the drain stack when joint failures are suspected but not visually accessible. Thermal imaging is less effective for PVC drain leaks than for pressurized copper supply leaks because the temperature differential is lower and less consistent. Camera inspection is the most reliable tool for PVC drain diagnosis in finished spaces.

Buried PVC Lateral Leaks

Buried PVC sewer laterals in Smyrna yards develop leaks primarily through root intrusion and joint separation from soil movement. Georgia red clay's moderate shrink-swell cycle moves buried pipe joints slowly over decades. A joint that shifts even a few millimeters provides enough of a gap for Georgia's aggressive tree roots to enter. Once inside, roots grow to fill the available space, eventually causing blockage and structural damage to the pipe wall.

We diagnose buried PVC lateral failures with camera inspection, which shows root intrusion, joint offsets, and pipe condition along the full lateral run. For confirmed localized failures, we excavate at the camera-identified location and repair or replace the affected section. For extensive root intrusion across a long lateral run, cured-in-place pipe lining is often the most cost-effective repair option because it seals all joints along the run from a single access point without full excavation. See the sewer line detection page for the complete lateral investigation and repair sequence.

PVC Irrigation and Yard Supply Lines

Most Smyrna irrigation systems use Schedule 40 PVC supply lines or polyethylene drip tubing. The Schedule 40 PVC develops joint failures and stress cracks from clay movement and occasional freeze events. Polyethylene drip lines develop fitting failures at the emitter connections and at the main supply connections at the manifold.

We pressure-test irrigation zones to identify leaking sections and locate breaks with acoustic equipment or sequential zone isolation. Because irrigation systems in Smyrna run under lower pressure than domestic supply, acoustic detection is less sensitive than on supply lines. Sequential zone isolation, where each zone is pressurized and monitored independently, is often the most efficient diagnostic approach for irrigation PVC. The dedicated irrigation leak detection page covers the full zone-by-zone process.

Frequently Asked Questions