Posted by Spycor Building on Nov 3rd 2025
Hydrostatic pressure doesn’t wait for excuses—it cracks concrete, floods basements, and turns million-dollar projects into insurance nightmares. If you’re staring down a 40-foot excavation with saturated backfill or a lagging wall that needs to survive decades of groundwater assault, DELTA®-DRAIN 6000 HI-X is the only drainage board rated for 15,100 psf that won’t flatten under the load. This 1,500-word field manual cuts through the noise to give you exact installation sequences, lap details, and backfill protocols proven on bridge abutments and high-rise blind-side walls. No fluff, no comparisons—just the steps that keep water moving and your schedule intact.
As the only dimpled drainage composite built from co-polymer polypropylene with a fused geotextile that flows 150 gallons per minute per square foot, DELTA®-DRAIN 6000 HI-X turns hydrostatic threats into gravity-fed relief. By the time you finish reading, you’ll know how to overlap cores without trapping air, tape joints that survive 45-foot burial depths, and backfill without crushing dimples. Let’s lock it in.
What Makes DELTA®-DRAIN 6000 HI-X
the Go-To Drainage Solution?
Picture this: 18 gallons per minute per linear foot screaming down a vertical wall at a 1.0 gradient. That’s DELTA®-DRAIN 6000 HI-X in action. The dimpled core—10 mm tall and molded from co-polymer polypropylene—creates an unbreakable air gap while the needle-punched geotextile (50 US sieve) filters fines without choking flow. Unlike polystyrene boards that brittle-crack on impact, this material shrugs off rebar drops and excavator buckets.
Roll it out in 4' x 50' (200 sq ft) or 6' x 50' (300 sq ft) sections—41 or 63 lbs respectively—and you’ve got coverage that fits standard boom trucks. Zero UV degradation for 30 days means you can stage it on-site without panic. Need proof? ASTM D5397 stress-crack resistance clocks in at >504 hours at 156 kPa. Translation: no splits, no leaks, no callbacks.
Key Features and Specifications of
DELTA®-DRAIN 6000 HI-X
| Property | Specification | Test Method | Field Impact |
|---|---|---|---|
| Compressive Strength | 15,100 psf (723 kN/m²) | ASTM D6364-06 | Survives 45+ ft backfill; zero dimple collapse under 80-ton compactors. |
| Geotextile Flow Rate | 150 gal/min/ft² (6095 l/min/m²) | ASTM D4491-99 | Drains a 1-inch rain event in under 60 seconds. |
| Geocomposite Flow Rate (1.0) | 18 gal/min/ft (223 l/min/m) | ASTM D4716-99 | Keeps walls dry during peak storm cycles. |
| Geocomposite Flow Rate (0.1) | 3.2 gal/min/ft (40 l/min/m) | ASTM D4716-99 | Handles slow seepage in clay-heavy soils. |
| Dimple Height | 2/5 inch (10 mm) | N/A | Locks in airflow even after decades of soil pressure. |
| Geotextile Tensile | 90 lbs grab (401 N) | ASTM D4632 | Resists rips when backfill drags across it. |
| Puncture Resistance | 265 lbs CBR (1178 N) | ASTM D6241 | Laughs at 2-inch angular rock. |
| AOS | 50 sieve (0.300 mm) | ASTM D4751 | Stops silt migration; keeps core clean. |
| UV Retention | 70% after 500 hrs | ASTM D7238 | 30-day staging window. |
Every number is field-verified. The 15,100 psf rating means you can park a fully loaded concrete truck on the backfill without flattening the drainage plane.
Unmatched Benefits: Why Choose
DELTA®-DRAIN 6000 HI-X for Your
Project
- Zero Clog Risk – Geotextile stays bonded; no separation, no silt bridges. Flow stays >90% of day-one capacity after 10 years (independent silt-box testing).
- 45-Foot Burial Depth – 15,100 psf keeps dimples open under 2,000+ psf soil + surcharge.
- Blind-Side Ready – Geotextile-out orientation filters lag-board gaps while cores butt and tape for a continuous drain plane.
- 25+ Year Warranty – Neutral pH 4-9, <77°F soil temp. Outlasts the mortgage on the building.
- LEED Points – Recyclable, non-toxic, zero VOCs.
Bottom line: one board, one install, zero water-related change orders.
Ideal Applications for DELTA®-DRAIN 6000 HI-X in Demanding Environments
- Soldier Pile & Lagging Walls – Geotextile-out, tape every core butt; drains 200 lf/min per 8-ft bay.
- Caisson Blind-Side – Wraps 36-inch shafts; 6-inch shingle laps shed water before concrete pour.
- Bridge Abutments – Vertical flow stops scour; 265 lb puncture rating survives riprap.
- Deep Parking Garages – 45 ft below grade; connects to 12-inch perimeter pipe at 0.5% slope.
- Stormwater Detention – Lines aggregate basins; 18 gpm/ft handles 100-year events.
Step-by-Step Guide: How to Install
DELTA®-DRAIN 6000 HI-X Like a Pro
Positive-Side (Geotextile Out)
- Substrate Prep – Shotcrete or form face must be <1/4-inch protrusions. Grind high spots.
- Waterproofing – Roll DELTA®-MS 20 mil; terminate 6 inches above finish grade.
- Start Low – Unroll horizontally from footing. Flat side to wall. Drape 12 inches over footing.
- Fasten Top Row – DELTA-FAST’ners + 1-1/4-inch concrete nails, 8 inches down from top edge, 12 inches o.c. in “W” pattern.
- Vertical Laps – Strip geotextile 4 inches on upper sheet. Butt cores. Overlap geotextile only. Nail every dimple.
- Horizontal Laps – 6-inch shingle (lower sheet on top). No core interlock.
- Tape Core Butts – 4-inch DELTA-MULTI BAND continuous.
- Terminate Top – DELTA-MOLD STRIP flashed under counterflashing.
- Backfill – 12-inch lifts, <2,000 psf wheel load, plate tamp only.
Blind-Side (Geotextile to Lagging)
- Orientation – Geotextile against timber/steel lagging.
- Core Butts – Butt tight; run 4-inch DELTA-MULTI BAND full length.
- Horizontal Shingle – Lower sheet geotextile folded back 6 inches, upper sheet overlaps and tapes.
- Fasteners – 2-inch galvanized ring-shank nails + 1-inch washers every 12 inches.
- Pour Protection – 1/4-inch plywood slip sheet before concrete.
Critical Detail: All core-to-core joints taped. No exceptions.
Pro Tips for Long-Lasting DELTA®-DRAIN 6000 HI-X Performance
- Backfill Spec: 3/4-inch clean crushed stone, 35% voids. Zero fines.
- Perimeter Pipe: 4-inch perf PVC at 0.5% slope, socked, daylighted or to sump.
- Freeze-Thaw: Extend board 24 inches below finish grade in Zone 5+.
- Inspection Port: Install 2-inch PVC cleanout at base every 50 lf.
- Post-Pour Check: Camera the pipe after 1-inch rain. Clear flow = success.
Ready to bulletproof your foundation?
Click Here to explore the DELTA®-DRAIN 6000 HI-X and lock in your order today—same-day quotes, next-day shipping on full pallets.
FAQ: Your DELTA®-DRAIN 6000 HI-X
Questions Answered
What is the maximum burial depth for DELTA®-DRAIN 6000 HI-X?
45 feet with 15,100 psf compressive strength; dimples stay open under 2,000 psf surcharge.
How much water can DELTA®-DRAIN 6000 HI-X move vertically?
18 gallons per minute per linear foot at 1.0 gradient; 3.2 gpm/ft at 0.1 gradient.
Do I need washers with fasteners in blind-side installs?
Yes—1-inch fender washers prevent pull-through on lagging.
Can DELTA®-DRAIN 6000 HI-X be left exposed to sunlight?
30 days maximum; 70% strength retention after 500 hours UV.
How do I terminate the top edge to prevent water entry?
DELTA-MOLD STRIP flashed 2 inches under metal counterflashing, sealed with mastic.
