Solving Deck Stair Drainage with a Rain Chain and Basin

When a waterproof deck's stairs create a drip edge over a patio, a decorative rain chain paired with a gravel-filled catch basin offers an attractive, functional solution.

How It Works

1. Install a rain chain at the drip point to guide water downward.
2. Place a large decorative bowl or basin filled with pea gravel beneath it to diffuse splash.
3. Drill a small hole in the basin, fit a compression fitting, and run a buried drain hose (minimum 2% slope) to a safe discharge point.

Benefits

• Eliminates erosion and water staining on the patio.
• Adds a visual and auditory water feature.
• Low maintenance once installed.

Rain chains come in many styles—copper, steel, ceramic—to match your outdoor aesthetic.