What is adu sewer lateral tie-ins?
An ADU sewer lateral tie-in connects the drains of a new accessory dwelling unit to your existing sewer lateral or a new connection. Before tying in, the existing lateral should be inspected, because adding a kitchen and bathroom increases flow through pipe that may already be decades old.
Signs you may need adu sewer lateral tie-ins
- You are planning or building an ADU or granny unit.
- You are converting a garage into living space.
- You are adding a bathroom far from the main line.
- Your existing lateral is old clay or cast iron.
Think you need adu sewer lateral tie-ins? Call to talk it through with a local pro.
Call (805) 902-1160How adu sewer lateral tie-ins works
- Camera inspection of the existing lateral.
- Plan the route, slope and connection point.
- Coordinate with your ADU plans and city permits.
- Install the tie-in and any needed lateral upgrades.
- Inspection and final camera check.
ADU Sewer Lateral Tie-Ins in San Luis Obispo
ADUs are a popular way to add housing in San Luis Obispo. Many are being added to older lots with original laterals, so checking the line before construction avoids digging up new landscaping later.
What affects the cost?
Cost depends on distance from the ADU to the lateral, depth, whether the existing lateral needs replacement, and permit requirements. Always ask for a written quote and a copy of any camera footage before work begins.
Helpful tips
- Inspect the lateral before finalizing ADU plans.
- Replace an old lateral before new hardscape goes in.
- Include a cleanout near the tie-in.
