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A&A
A&A Equipment
and Supply Co.

Choosing the Right Adjustment Ring for Your Manhole Rehabilitation Project

  • Joseph Cruz
  • Aug 2
  • 2 min read

Updated: Oct 6

The Right Adjustment Ring

Why the Right Adjustment Ring Matters

Manhole rehabilitation doesn’t end with patching or lining. One of the most critical components in restoring long-term integrity—and preventing future failures—is selecting the right adjustment ring. These rings level the frame to the road surface, protect against infiltration, and absorb traffic loads. Get it wrong, and you're inviting early failure or costly callbacks.


At A&A Equipment and Supply, we help sewer and water contractors across Illinois choose the right solution the first time.


Key Factors to Consider

1. Material Type

Each job site has different demands. We carry a wide variety of options including:

  • Rubber Composite Adjustment Rings Durable, watertight, and ideal for reducing infiltration. Common in urban settings where vibration and surface water infiltration are constant issues.

  • Precast Concrete Rings Tried and true for decades. These are economical, stackable, and great for heavy traffic areas—especially when installed with proper sealant and grout.

  • HDPE or Poly Rings Lightweight and corrosion-resistant. Often preferred for rehab jobs where weight is a concern or equipment access is limited.

  • Hybrid or Tapered Rings When elevation matching needs precision, these are ideal for minor grade adjustments.


2. Load Requirements

Adjustment rings must meet traffic load demands, especially in:

  • DOT roadways

  • Heavy trucking routes

  • Industrial parks

We ensure the rings we stock meet AASHTO H-20 or higher ratings depending on your project needs.


3. Fit and Compatibility

Different structures, different needs. Always verify:

  • Frame size

  • Inside/outside diameters

  • Sealant compatibility

  • Number of rings required

Our team helps you avoid mismatches before you're on site.


Helping You Get It Right—Every Time

When it comes to sewer construction supplies, our job is to make your job easier. We stock a variety of manhole rings in standard and custom sizes, and we can help you select the best combination of material, height, and load class for your specific site conditions.


Need something fast? We offer same-day pickup from our Bensenville location and next-day delivery across Chicagoland.


Why Contractors Trust A&A Equipment

  • Certified expertise in manhole rehabilitation (NASSCO ITCP-MR)

  • Local supplier, fast turnaround

  • Tailored recommendations for municipal specs

  • Support with takeoffs and submittals

  • Access to compatible frames, risers, and sealants


Need Help With Selection?

If you're planning a rehab project or responding to a bid spec, reach out today. We'll walk through the site demands, recommend the right adjustment ring system, and help you avoid overbuying or under-specifying.


Contact A&A Equipment and Supply for adjustment rings, concrete structures, and everything you need to build and rehab Illinois sewer infrastructure the right way.


Visit aa.equipment or call us to get started.

 
 
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