What Is the ACO K100—and When Should You Use It?

Definition (plain-English): A linear trench drain collects surface runoff along a line and moves it to a safe discharge point. The K100 uses 1-meter (39.37″) channels that connect end-to-end to make longer runs. This creates a continuous intake slot—ideal where puddles or sheet flow build up.

When it’s the right choice:

• Driveways, loading areas, and sidewalks where a curb inlet is impractical.
• Parking lots & garages that need continuous capture along traffic aisles.
• Courtyards & patios requiring a clean architectural look.

Grate Selection & Load Classes

Load Class basics: Grates are tested for strength under load. Higher class = heavier traffic. Class A–C is typical for walkways and light vehicles, Class D handles occasional trucks, and Class E tackles heavy-duty areas like service lanes. Choose the lowest class that safely covers your heaviest expected load to control costs.

Finish & appearance: Stainless and powder-coated grates give a refined look for high-visibility areas; ductile iron is the workhorse for industrial sites. Mesh or slotted patterns balance intake area with heel safety and debris resistance.

Edge Rails: Galvanized vs. Stainless

• Galvanized steel: Cost-effective corrosion protection for most outdoor installs.
• Stainless steel: Best for coastal, foodservice, or architectural applications where appearance and corrosion resistance matter.

How to Plan Slope & Layout (Step-by-Step)

1. Map runoff paths: Identify high points and where water currently ponds.
2. Pick discharge point(s): Catch basin, underground pipe, or daylight outfall.
3. Choose run length: K100 channels are 39.37″ each—count channels to cover the distance.
4. Set slope: The system supports continuous slope up to 130 ft. Target ~0.5–1% where possible for faster self-cleansing flow.
5. Confirm grate class: Match to traffic (see Load Classes above).
6. Plan joints & end caps: Use numbered channels to keep the fall consistent.

Installation Overview

• Excavate trench (allow for bedding and concrete haunching per manufacturer guidance).
• Set a string line to your target invert elevations.
• Place channels in sequence (follow the numbers) and connect.
• Secure and pour concrete backfill/haunch. Protect tops during cure.
• Install grates using DrainLok® or QuickLok®—no bolts required.