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Surface water management
StormDrain Plus Water Management Systems
A modular channel drain that collects standing surface water and carries it away from driveways, patios, pool decks and walkways.
39.5″ channels
Class B load
ADA and heel guard grate
No clips or screws
Built to move water
Join it together, set it in concrete, and send the water where you want it. Channels interlock end to end, grates lock in place, and every channel has three bottom outlets for 3″ or 4″ pipe.
Channel length
39.5″
Maximum per channel, through 47 sq in of open grate
60 gpm
Bottom outlets in every channel
3
Cars and light trucks under 20 mph, installed in concrete
Class B
Purposeful details, top to bottom
Grates lock in. No clips or screws to assemble.
Textured, concave grate. A non-slip surface that funnels water into the channel.
Interlocking channels. A built-in joining system connects lengths end to end.
Reinforced ribs. Molded in for strength and rigidity.
Cavity feet. They grip the concrete and allow staking if needed.
Three bottom outlets. Cut one open with a hole saw or utility knife to fit 3″ or 4″ Sch 40, 4″ SDR-35, corrugated or 4″ triple wall pipe.
UV inhibited. Channels, grates and accessories.
ADA and heel guard grate
Narrow slots for foot traffic at entrances, patios and pool decks.
Class B load
61 to 175 psi. Medium-duty pneumatic tire traffic, cars and light trucks under 20 mph, when installed in concrete per the instructions.
Where it works
Anywhere water pools and causes a mess, damage or a slip hazard.
Driveways
Catch water at the garage door and across paved surfaces.
Patios
Move water away from outdoor living space.
Pools
Handle splash-out and surface water on the deck.
Sports courts
Clear standing water from the playing surface.
Gardens
Direct runoff away from planting beds.
Walkways
Drain pooling water from paths and entrances.
Channels and accessories
Build straight runs, corners, tees and crosses. Accessories slide into the female end of a channel and tab into the male end or a cut end.
FSDP-CHGG
39.5″ channel with grate
Grey channel with a locking grate. Carton of 9.
FSDP-GP3G
Contractor pack
Three channels with grates, one End Cap and one End Outlet. Carton of 3.
FSDP-QUAD
Quad 4-way connector
Makes left or right turns, tees and crosses. Cut out the openings you need. Carton of 3.
FSDP-EC
End Cap
Closes the end of a run. No clips or screws. Carton of 5.
FSDP-EO
End Outlet
An end-of-run connection to 3″ or 4″ sewer and drain or Sch 40 pipe. Carton of 10.
How to install
Install requirements change with the surface and the traffic. Read the full instructions before you start.
1
Dig the trench
Deep enough for a 2″ sand bed and wide enough for at least 4″ of concrete on each side.
2
Set the grade
Run a string line at the finished height, mark the bottom outlet location if you’re using one, then spread and compact the sand. The channel isn’t pre-sloped, so the string sets the fall.
3
Open an outlet
Using a bottom outlet? Open it with a 3″ hole saw before setting the channel.
4
Connect the run
Join channels and add the End Cap, End Outlet or Quad. Cut a channel and grate to length if needed.
5
Set and secure
Work from the outlet end along the string line. Secure with ½″ rebar and wire ties.
6
Pour and cure
Tape the grates and the grate lock holes, then pour. For vehicle traffic, finish the concrete so the channel sits 1/16″ below it. Let it cure fully before traffic or removing grates.
Don’t pour asphalt against the channel. Use at least 4″ of concrete between them. For patios, gardens and walkways, use concrete at least 3″ deep and 4″ out on each side, then add pavers or soil. Send the water to a storm drain, pop-up emitter or daylight, away from the house and where local code allows.
Watch the install
From trench to finished pour.
Specifications
| Use | Residential surface drainage and light-duty commercial: driveways, patios, pools, courts, gardens and walkways |
| Channel length | 39.5″ |
| Grate open area | 47 sq in per channel |
| Flow | Up to 60 gpm per channel |
| Load | Class B, 61 to 175 psi: medium-duty pneumatic tire traffic, cars and light trucks under 20 mph, installed in concrete |
| Grate | ADA and heel guard compliant, textured non-slip surface |
| Outlets | 3 bottom outlets per channel, plus the End Outlet |
| Pipe connections | 3″ and 4″ Sch 40, 4″ SDR-35, corrugated and 4″ triple wall |
| Materials | UV inhibited channel, grate and accessories |
| Assembly | No clips or screws |
Common questions
Can I drive on it?
Yes, when it’s set in concrete per the instructions. It’s rated Class B (61 to 175 psi) for cars and light trucks under 20 mph. Let the concrete cure fully first.
Can it go in an asphalt driveway?
Yes, but not with asphalt poured right against the channel. Put at least 4″ of concrete on each side, then pave up to the concrete.
Is the channel pre-sloped?
No. Set the fall with a string line and the sand bed as you install, working from the outlet end.
How do I make a corner, tee or cross?
Use the Quad (FSDP-QUAD). Cut out the openings you need for a left or right turn, a tee or a cross.
Where should the water go?
Run 3″ or 4″ pipe from a bottom outlet or the End Outlet to a storm drain, a pop-up emitter or daylight, away from the house. Don’t send it onto a neighbor’s property, and follow your local stormwater code.
How do I keep it clear?
Lift out the grates and clear leaves and grit from the channel from time to time, especially after storms.
Documents and downloads
The sell sheet and installation instructions in English and French, plus the catalog page.
Got questions?
Planning a layout or a driveway run? Our team can help. Reach out, or find your Fernco rep.