Swivel Pipe or Level Sill Spillway- Which Should You Use for a Swale

When designing a swale, choosing the right overflow system can make the difference between a resilient water-harvesting earthwork and a damaged one.

In this Q&A, Geoff explains the difference between a swivel pipe and a level sill spillway. Learn when each option makes sense, how they handle water flow, and the simple maintenance needed to keep your swales functioning during heavy rains.