Buyer Guide

Best Equipment for Sewer Installation Contractors

What your crew actually needs to run gravity sewer, storm drain, and force main jobs — from the pipe laser in the trench to the as-built documentation the city signs off on.

What Equipment Sewer Contractors Need

Sewer installation requires at minimum three instrument categories. Run all three and you install the pipe correctly, verify it before backfill, and close out the job with documentation the city accepts. Skip one and you're either re-digging or arguing with the inspector.

1. Pipe Laser

In-trench grade control on every run. Sets grade from the plans, projects down the pipe center, and confirms alignment at every joint.

2. Rotary Laser

Surface benchmarks, excavation depth control, offset staking. The pipe laser can't control what happens before it goes in the trench.

3. Level or Total Station

MH-to-MH as-built shots for the record drawings. Some cities require a licensed surveyor's as-built; others accept contractor-collected data.

Top Pipe Lasers for Sewer Contractors

Spectra Precision DG813

Best Value

The best-selling pipe laser in U.S. sewer markets. The Dialgrade system lets you enter grade directly from the plans — no conversion tables. IP67 submersible, 0–25% grade range, ±0.001° accuracy. The remote control lets you adjust grade from the trench floor. For standard gravity sewer work, this is the instrument.

✓ Grade range: 0–25%
✓ Accuracy: ±0.001°
✓ IP67 submersible
✓ Pipe range: 4"–48"
✓ Range: 200m

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Topcon TP-L6GV (Green Beam SmartLine)

Most Precise

The step up for crews working in deep shafts or strong ambient light. The green beam is 4× more visible than red — significantly easier to read in shallow trenches or outdoor daylight. SmartLine technology auto-locks to the pipe centerline, cutting setup time on each new run. IP67 rated, 400m range.

✓ Green beam (4× brighter than red)
✓ Grade range: 0–25%
✓ Accuracy: ±0.001°
✓ IP67 submersible
✓ Range: 400m

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Leica Piper 200G

Deepest Shafts

The instrument for bore-and-jack, micro-tunneling, and deep shaft operations. Where other pipe lasers top out at 200–400m, the Piper 200G reaches beyond 600m and handles shaft depths over 60 feet. Remote control operation from the surface. The choice when the shaft is too deep for anything else.

✓ Range: 600m+
✓ Deep shaft capability: 60+ ft
✓ Remote control
✓ Green beam visibility

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Rotary Lasers for Surface Grade Control

Every sewer crew needs a rotary laser above ground. It sets the benchmarks, controls excavation depth, and verifies the benchmarks your pipe laser grades against. Without a reliable surface laser, your pipe grades are only as accurate as your bench shots.

Best Seller

Topcon RL-H5A

Self-leveling, IP66 waterproof, 2,600 ft range. The standard for sewer contractor surface work.

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IP67 Rated

Leica Rugby 620

IP67 submersible (not just splash-resistant), self-leveling, precision-grade Leica optics. For crews who need full submersion protection above ground too.

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Field Documentation

This equipment + Gradelog = as-built packages city engineers accept on first submission

Your pipe laser controls the grade. Gradelog documents it. Instead of paper shot logs that get wet and illegible, your crew logs MH-to-MH grade data digitally. Gradelog generates the formatted as-built reports — grade tables, profile verification, MH-to-MH summaries — in the format city engineers expect for sewer acceptance. No manual spreadsheet work, no rejected submittals because the format was wrong.

Document sewer as-builts with Gradelog →

FAQ: Sewer Contractor Equipment

What is the best pipe laser for sewer installation?

For most sewer contractors, the Spectra Precision DG813 is the best value pipe laser — it covers the full 0–25% grade range, has an IP67 submersible housing, and the Dialgrade system lets you set grade directly from the printed plans. For deeper shafts and better daylight visibility, the Topcon TP-L6GV green beam is the step up. For bore-and-jack and deep shaft work, the Leica Piper handles depths beyond 60 feet.

Do sewer contractors need a rotary laser in addition to a pipe laser?

Yes. The pipe laser controls grade inside the trench on each run. A rotary laser (like the Topcon RL-H5A or Leica Rugby 620) establishes benchmarks above ground, controls excavation depth, and is used for offset staking and final grade verification before backfill. Most sewer crews also carry a digital level or total station for MH-to-MH as-built shots.

What accuracy do I need for a gravity sewer pipe laser?

You need ±0.001° accuracy — approximately 1/16 inch per 100 feet. Both the DG813 and TP-L6GV meet this spec. The critical requirement beyond accuracy is IP67 or IP68 submersibility: any instrument that isn't rated for submersion will fail in a wet trench.

What does the Gradelog + pipe laser combination give you?

Gradelog takes your crew's grade shot data and generates the MH-to-MH grade verification reports that city engineers require for sewer acceptance — formatted and ready for submittal. Instead of paper shot logs that get wet and lost, you have timestamped digital records and formatted as-built packages. City engineers accept them on first submission because the format matches what they're looking for.

Related Resources

Sewer Contractor Equipment Overview →Shop All Pipe Lasers →Shop Rotary Lasers →