The Linear Drainage that can...

Outline

Background, operation Design of Slot drain system. Design advantages of Slot drain system.

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The Slot Drain Story

• Slot Drain ® was patented in 1988 by company founder/inventor Glen Kehler

• The First floor drain in North America to be prefabricated, pre-sloped and slotted. Patent # US 4,787,773

Learning Objectives At the conclusion of this course, you will be able to: 1. Describe the basic ideas of a linear drainage system.

2. List the benefits of a Slot Drain system.

3. Compare and contrast the differences between traditional

trench drainage systems and Slot drain.

4. Cite case studies and installation examples of Slot drain systems.

5. Describe how Slot Drain systems can help reduce project costs.

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Linear Drainage

Drainage is the process of carrying water AWAY from a specific place.

The process of drainage has been around for many years. Linear drainage can be referred to as: channel drainage, line

drainage, trip drainage and slot drainage. Trench drains are considered to be an open trench with removable

grates. Slot drains are a slot in the pavement connected to underground

drains and do not have removable grates. Generally a trench is regarded as the dug out created in the ground. A drain section is an individual modular piece which when added to

others makes up the drainage system.

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Reasons for Linear Surface Drainage

Reduce Ponding Reduce Slip Hazards Protect and Extend Life of Paved Surfaces Protect Property from Flood Damage

Reduce Inconvenience to Public Users

Reduce Hydroplaning Hazard to Vehicles on Roads

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Options for Handling Surface Drainage

Ignore It Open Swale Catch Basins Linear Drains

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Open Swale

Linear Slot Drain

Catch Basin

Types of Drainage

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Catch Basin Drainage

Cast in Place Trench Drains

Slot Drain System Modular Trench Drains

Disadvantages of Catch Basin

Uneven appearance. Complex, multiple grades to design and construct. Deeper excavation required due to pipe depths. Higher risk of ponding. Pipes prone to blockage and failure. Maintenance can be difficult and costly since piping is not

accessible. Possible interference with other utilities, i.e. electrical,

sewage, etc.

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Disadvantages of Cast in Place Trench Drains

Time consuming due to on-site formwork.

Hand-formed poured-in-place concrete trenches

often are not uniform in the slope.

Concrete absorbs water can attract bacteria and mould.

Difficult to get a uniform slope.

Slower drainage due to wide trenches

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Disadvantages of Modular Trench Drains

Debris and standing water result from slower flow and

create unsanitary conditions. BAD Smell to the environment from trench opening.

Concrete is attacked my mild acids, caustics and

saltwater.

High labor cost associated with continual cleaning .

Grates often have to be ground or otherwise modified to fit and to keep from rocking.

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Slot Drain Systems Neat, linear appearance Simpler grades to design and construct Easier to install due to shallower excavation

and pre-sloped sections make it easier to construct since slope is built in

Continuously intercepts water and provides superior drainage

Minimal underground piping Maintenance is quicker and easier since slot

is at surface and cleaning paddle maintains pipe profile allowing for quick and thorough cleaning. .

Less interference with other utilities since excavation is shallow

No grates to lift, less Worker Compensation claims and user Injuries.

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Benefits of Slot Drain, cont. Rapid drainage. The design of the drain is shaped to increase

velocity during low flow conditions and helps in self cleaning.

Slot Drain Systems galvanized steel, Fiberglass and Stainless stell drain materials allow negligible water absorption preventing collection of bacteria and stops gasoline and other pollutants from getting into the soil.

Highly chemical resistant. Not eroded by cleaning agents in wash-down water in food processing plants.

Easily maintained since smooth, radius channels don’t collect debris.

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Possible Uses for Slot Drain Systems

Food and Beverage Processing Facilities Animal Facilities Stadiums and Sporting Facilities Fire Stations, Public Safety Buildings Vehicle Maintenance Facilities Pools Airports Manufacturing Plants Lawn and Garden Centers Retail Stores Parking Lots

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Application Factors in Slot Drain System Selection

Hydraulic Performance – What SLOT SIZE TO SELECT? What is the amount of liquid to be intercepted, collected and carried in

a specific time period? What is the length of the drain run? What size of outlet is required?

Loading – what loads will the drain be subjected to?

Traffic type and frequency Wheel size and type Static versus dynamic loading

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Application Factors in Slot Drain System Selection cont.

Performance – How the system performs over time Material choices and flow performance Chemical and Natural environment resistance Installation

User Requirements – project specific options Aesthetic – visual look requirements Safety – ADA (Americans with Disabilities Act) requirements,

pedestrian requirements – ladies heels, slip resistant finish, etc. Sanitary – ease of cleaning and bacteria/mold concerns.

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LOADING - Application and Uses for Slot Drain Systems

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Extra Heavy Duty • For use: Commercial solid tire traffic patterns, forklifts, and

impacts from steel struts or metal wheels.

Heavy Duty • For use: Commercial pneumatic tire traffic patterns,

forklifts, and tractor trailers

Medium Duty • For use: Passenger cars and vans

Light Duty • For use: Pedestrian, wheel chair and bicycle traffic areas.

Fiberglass Slot Drain

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Features and Benefits

Applications

• Channel sections are available in 15’, and 10’ long sections. • Channels are available in neutral (flat) and 1/8” sloped. • Channel depths range from 4.5” to 13.5” deep. • High flow surface channels available in galvanized steel and

stainless steel material. • Fiberglass channels are available in two different resins,

polyester and more chemical resistant vinyl ester. • 2”, 4”, or 6”, vertical or horizontal outlets are available.

• Car Wash • Water Treatment Plants • Chemical Intense Manufacturing

Stainless Steel and Galvanized Steel Slot Drains

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Features and Benefits • 1 Meter Channel Sections, 5’ and 9’ 8” long sections • ½” , 1” . 1 ¼” Wide Slots with Bolting End Plates. • 23 Modular Chanel Sections Made of 16 Gauge, type 304

Stainless Steel, or galvanized steel. • .5% Build-in Slope. • Channel Inverts Range from 4” inch to 5’ foot sections • Regularly Furnished with Secure Slotted Stainless Steel

Surface Channels. • End Outlet Available in 2”, 4”, and 6”

Applications • Food Handling • Bottling Plants • Commercial Plants • Food Handling (Restaurants and Cafeterias)

Case Studies

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Hi Test Farms Fresno California.

Hi Test Farms was a new construction project and required over 1500 ft of linear drain. Most of the project called for irregular or custom designed drains. An engineered stainless steel slot drain system was provided for the project.

Case Studies

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Steinbach Fire Hall

A New Firehall with 6 Bays required an even floor surface between each bay. They requested a solution that could be designed and installed with minimal floor disruptions. A high capacity pre-sloped fiberglass slot drain system was provided for the project.

Course Summary By now you should be able to: Describe the basic ideas of Linear Drains

List the benefits of Slot Drains

Compare and contrast the differences between traditional drainage and

engineered trench drains

Cite case studies and installation examples where a slot drain systems benefited the owner

Describe how a slot drain system can help reduce project costs

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