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Pre Sloped Trench Drain System - 39.37" Channel - ACO K100

Pre Sloped Trench Drain System - 39.37" Channel - ACO K100

Pre Sloped Trench Drain System - 39.37" Channel - ACO K100

$156.00


FREE SHIPPING
SKU K100

The ACO K100 Pre-Sloped Trench Drain System is a modular drainage solution engineered for efficient water management across a wide range of applications. With a 4-inch internal width and a built-in continuous slope of up to 130 feet, it ensures smooth water flow while reducing the risk of standing water. Constructed with durable galvanized steel or stainless steel edge rails, this system is designed for long-lasting strength and reliability.

Its innovative boltless locking mechanisms, DrainLok and QuickLok®, allow for quick, secure installation and easy grate removal, streamlining maintenance. Anti-shunt lugs and numbered channels further enhance performance by ensuring proper alignment and secure grate placement.

To meet diverse project needs, the system offers a broad selection of grate options—including mesh, slotted, perforated, and ductile iron—rated up to Load Class E for heavy-duty use.

System Selection:

  • Scroll down to select your system components. Multiple channel units are connected together and then paired with accessories such as catch basins and grates. 

Note: ACO drainage products are subject to a $750 minimum order


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View Our Full Selection of ACO Trench Drain Products →

Ordering Info:

Please scroll down for the complete K100 product listing with pricing. Not sure of the exact parts needed for your project? Please submit an ACO Trench Drain Quote Request >

Spec Sheets

Visit acowm.com to download specification sheets and other technical information.

Shipping

  • All items ship for free (standard ground, see map)
  • Call: (800) 583-4891 for pricing and shipping questions. Shipping estimates shown on the map pertain to this specific product only.
  • Orders typically ship in 1-3 business days. Transit times displayed in the map are listed in business days, and are approximate. The day that the order is shipped is not counted as a transit day.
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Trench Drain System & Accessories (Free Shipping)

Please see the below product listing. Please note, accessories (grates, basins, caps, etc.) must be purchased with a trench drain system including channels and cannot ship alone.

Pre-Sloped Trench Drain Systems: A Practical Guide (ACO K100)

Learn how pre-sloped channels improve drainage performance, when to select them, and how to design a clean, low-maintenance layout—plus a real-world case study.

Quick definition: A pre-sloped trench drain is a modular channel system manufactured with a built-in, continuous slope. In simple terms: the channel floor gently “tilts” toward the outlet so water keeps moving—reducing ponding and sediment buildup.

Why Choose a Pre-Sloped System?

  • Consistent flow without guesswork: The slope is engineered into each channel for predictable hydraulics.
  • Faster install, cleaner finish: Numbered channels maintain grade automatically, minimizing field errors.
  • Lower maintenance: Continuous pitch helps limit standing water that can trap debris and cause odors.
  • Stronger, safer grate interface: ACO’s boltless DrainLok and QuickLok® speed installation and simplify cleaning.
ACO K100 pre-sloped trench drain along an urban streetscape
Boston Streetscape — ACO K100 Pre-Sloped Channel

Meet the ACO K100 Pre-Sloped Trench Drain

The ACO K100 Pre-Sloped Trench Drain System is a 4-inch internal-width solution with a built-in continuous slope (up to 130 feet) for reliable water movement and reduced ponding. Durable galvanized steel or stainless steel edge rails provide long-term strength and a crisp, architectural finish.

  • Fast access, no bolts: DrainLok and QuickLok® secure grates without hardware, making maintenance quick.
  • Anti-shunt lugs: Help prevent grate movement under traffic and keep edges aligned.
  • Numbered channels: Ensure correct sequence for the designed slope.
  • Grate choices: Mesh, slotted, perforated, and ductile iron options—rated up to Load Class E (heavy-duty service).

How Pre-Sloped Channels Work (Plain-English)

Technical: Each channel section drops a small amount in elevation relative to the previous one, creating a continuous hydraulic grade line toward an outlet.

In practice: Think of nesting slides that each sit a hair lower than the last—water naturally “wants” to move to the end without flat spots that can trap debris.

Where Pre-Sloped Drains Shine

  • Plazas, courtyards, campuses: Manage broad sheet flow while preserving clean lines.
  • Parking areas & drop-offs: Move water to outfalls before it reaches pedestrian zones.
  • Stadiums & venues: Keep concourses dry under heavy foot traffic.
  • Retail & mixed-use: High-visibility sites that need both performance and appearance.

Grate Selection Tips

  • Mesh & slotted: Great all-around choices; balance intake and aesthetics.
  • Perforated: Higher heel-safety and visual uniformity for plazas.
  • Ductile iron: Choose for heavy vehicles; many patterns support Class E loading.
Pre-sloped trench drainage used along a campus walkway
Cal Poly Campus Walkway — Pre-Sloped Drainage

Design & Layout: What to Decide Up Front

  1. Map the water: Identify inlets, high points, and where the outlet(s) can go.
  2. Confirm slope run: The K100 offers a continuous pre-slope up to 130 ft; longer runs can transition to neutral channels or add additional outlets.
  3. Pick the rail: Galvanized for value and durability; stainless where corrosion resistance or premium appearance matters.
  4. Choose the grate: Match intake needs, loading (up to Class E), heel-safety, and style.
  5. Plan maintenance: Use boltless grates (DrainLok/QuickLok®) to simplify periodic cleanouts.
Pre-sloped trench drain serving a baseball stadium concourse
Baseball Stadium Concourse — Continuous Pre-Slope

Installation Snapshot (Field-Friendly)

  • Excavate & base: Prepare a stable base to elevation; check fall to the outlet.
  • Set outlet end first: Place the lowest numbered channel at the outlet and work “upstream” in order.
  • Check alignment: Keep rails straight and elevations true; numbered channels preserve the built-in slope.
  • Backfill/encase per design: Follow project requirements for concrete or paving tie-ins.
  • Seat the grates: Use DrainLok or QuickLok® to snap grates in place; anti-shunt lugs help resist movement.

Case Study: Stadium Concourse Retrofit (Heavy Pedestrian Use)

Challenge: A regional ballpark struggled with ponding along a concourse after summer storms, creating slippery conditions and additional cleanup.

Solution: The design team specified ACO K100 pre-sloped channels with ductile iron grates (Class E) at entries and perforated grates near seating for heel-safety and aesthetics. Numbered pre-sloped channels simplified layout across subtle grade breaks.

Outcome: Continuous slope toward new outfalls eliminated chronic puddles, maintenance crews now pop grates with the boltless system for quick cleanouts, and post-event washdowns move water more efficiently to drains.

FAQs

What does “Load Class E” mean?

Technical: A classification indicating heavy-duty service capacity. Plain-English: choose Class E grates where you anticipate heavier vehicles or concentrated loads.

When should I use stainless steel rails?

Use stainless near coastal areas, de-icing salts, food service zones, or anywhere a premium, corrosion-resistant edge is desired. Galvanized rails are a durable, cost-effective default elsewhere.

How long can a pre-sloped run be?

The ACO K100 system provides a continuous pre-slope up to 130 ft. For longer alignments, add outlets or transition to neutral channels per the hydraulic design.

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