NDS FWAS24 Flo Stormwater Dry Well Kit 50 Gal

Overview

A 50 gallon underground dry well kit with three side panels and a top cover that connects to 4 inch sewer and drain pipe through 12 knockout points. Ships unassembled with an open bottom that lets water seep into the gravel and soil below.

This is drainage infrastructure, not a rain barrel: it's buried to collect and slowly release excess water rather than store it above ground for reuse, and it replaces a gravel-filled pit with a hollow chamber the listing says holds 250 percent more water than the same size hole packed with stone. Units stack up to 4 high or sit side by side 18 inches apart when one 50 gallon well isn't enough capacity.

• 50 gallon capacity, 3 side panels plus cover
• 12 knockout points for 4 inch S&D pipe
• Buries or stacks up to 8 feet deep
• 250 percent more detention volume than gravel fill

Who it's for

Homeowners dealing with a yard or landscape area that floods and need underground drainage tied into existing 4 inch drain pipe. Not a fit for anyone wanting to harvest and store rainwater for reuse, that job belongs to a rain barrel, not this kit.

Pros and cons

Performance notes

A small gravel bed under the open bottom lets water seep into the surrounding soil, while the hollow panel design avoids filling the whole excavation with stone, which is what gives it more effective storage volume than a gravel-only pit of the same size. Buried units support pedestrian traffic and lawn tractors, and can be buried or stacked to 8 feet deep, or connected side by side 18 inches apart, for larger drainage needs.

Specifications