When buying or selling a home, most people focus on staging, curb appeal, and standard home inspections. However, in many municipalities across the western Pennsylvanian area, a critical point-of-sale (POS) requirement can derail real estate closings at the last minute: mandatory sewer lateral inspections and dye tests.
Municipalities enforce POS sewer ordinances to protect local infrastructure and prevent environmental contamination. Failing to understand these requirements early in the selling process can lead to delayed closings, unexpected repair bills running into thousands of dollars, or escrow holdbacks.
What Is a POS Sewer Inspection Requirement?
A Point-of-Sale (POS) ordinance requires property owners to prove their private sewer lines comply with municipal regulations before transferring ownership. To obtain the required Evidence of Compliance or Document of Certification needed for title transfer, sellers must typically complete two distinct tests:
- A Sewer Camera (Scope) Inspection: Examines the physical structure of the pipe.
- A Sewer Dye Test: Verifies stormwater is not illegally discharging into the sanitary sewer system.
1. The Sewer Lateral Camera Scope
A sewer lateral is the private underground pipe connecting a building’s plumbing to the municipal sewer main under the street. During a POS video inspection, a licensed contractor inserts a flexible, high-definition camera into the lateral via a cleanout access point to verify structural integrity.
If structural defects are discovered during the camera inspection, local regulations generally mandate repairing or relining the pipe before closing.
2. The POS Dye Test Explained
While a camera inspection checks for physical damage, a dye test checks for illegal water routing.
Many municipal sewer networks use separate systems:
- Sanitary Sewers: Designed to transport household wastewater (from sinks, toilets, and showers) to treatment facilities.
- Storm Sewers: Designed to route rainwater from gutters, driveways, and yards directly to rivers and streams.
When rain runoff connects to the sanitary sewer, it overburdens treatment plants during heavy storms, causing raw sewage backups into basements and local waterways.
1.1. Dye Application:Plumber inserts fluorescent dye.
A licensed plumber introduces water-soluble, non-staining dye tablets or liquid into rainwater collection points, including roof downspouts, driveway drains, yard drains, and sump pumps.
2.2. System Flushing:Flushing lines with water.
Large quantities of water are flushed through the drains to wash the dye through the underground discharge route.
3.3. Downstream Inspection:Monitoring downstream access.
The plumber or municipal official monitors the downstream sanitary sewer manhole or uses a camera inside the main lateral.
4.4. Certification Verification:Passing vs. Failing result.
If colored dye appears in the sanitary sewer line from a downspout or yard drain, an illegal connection exists and the test fails. If the dye exits onto the street or storm drain as intended, the test passes.
How to Prepare for a POS Requirement
- Check Local Ordinances Early: Do not wait for a buyer’s offer to check sewer rules. Contact your city public works department or municipal sewer authority when listing the home.
- Use Authorized Personnel: Many townships require tests to be performed by registered, master plumbers or municipal officials—unauthorized reports are often rejected.
- Locate Cleanouts Ahead of Time: Ensure outdoor sewer cleanouts and fresh air vents are exposed and accessible so technicians do not spend billable hours digging for buried caps.
- Plan for Remediation: If a downspout fails a dye test, it must be disconnected from the sewer line and rerouted to discharge onto the ground surface. If the lateral is structurally compromised, trenchless pipe lining or excavation may be required.