Frequently Asked Questions

Duraslot

Yes. Surface runoff, roof leaders and lateral connections can all enter directly into the same Duraslot run using Inserta Tee connections. This reduces the need for additional structures and improves flow efficiency.

Grate selection should be based on load requirements, ADA compliance, debris condition and site aesthetics. In high-debris environments, wider grates such as Duraslot XL help maintain performance even with partial blockage.

Duraslot allows engineers to think in systems, not components. A single run can serve as the primary drainage backbone, consolidating surface runoff, roof drains and lateral connections into one continuous pipe for a cleaner, more efficient design.

Duraslot is ideal for capturing sheet flow along consistent slopes. Instead of creating multiple low points, engineers can design broader, uniform grading that directs water toward the linear drain, reducing ponding and simplifying site design.

In most cases, no. The continuous slot provides significantly more opening area than point inlets. Design is typically governed by pipe conveyance and site grading rather than inlet capacity.

Duraslot is a linear drainage system that combines continuous surface capture with subsurface pipe conveyance. It is built from N-12 HDPE Dual Wall Pipe and functions as both an inlet and a storm pipe, improving hydraulic performance while simplifying layouts.

On-grade installations intercept sheet flow along the length of the system while allowing water to continue downstream. Sag installations are placed at low points where water ponds, increasing inlet capacity. Duraslot XL is often preferred in sag conditions due to its wider opening and improved debris tolerance.

Design for self-cleaning velocities, include cleanouts every 50 to 100 feet, and account for debris loading. Nyloplast structures provide access for inspection and jetting, helping maintain long-term system performance with fewer maintenance intervals.

A minimum pipe slope of 0.5 to 1 percent is recommended, with steeper slopes used where conditions allow. Slopes around 2 percent can help achieve self-cleaning velocities, which reduce sediment buildup and maintenance needs.