When it comes to building reliable infrastructure, strength and durability are important, but they’re not the whole story. Today’s projects, whether municipal or commercial, take environmental responsibility seriously, especially in how they handle wastewater. That’s where sanitary manholes come in. They might not get much attention, but these structures play a crucial role in keeping groundwater safe and clean.

At Del Zotto Products, we understand the importance of sealing success into every structure. That’s why our precast sanitary manholes are engineered not only for strength and longevity but also for environmental safety.

Why Joint Sealing Matters

Sanitary manholes provide access to underground sewer systems for maintenance and inspection. However, their most critical function is containment. If a manhole joint is improperly sealed, it can allow for two major issues: infiltration and exfiltration.

Infiltration occurs when groundwater enters the sewer system through leaks, cracks, or faulty joints. This can overwhelm wastewater treatment systems, especially during wet seasons, and increase treatment costs. Exfiltration is the reverse—when untreated sewage escapes the system, threatening nearby groundwater sources and ecosystems. Both scenarios can lead to regulatory violations, environmental damage, and expensive remediation.

How Del Zotto Manholes Prevent Contamination

Del Zotto sanitary manholes are engineered to provide watertight performance and long-term reliability. Here’s how we deliver on that promise:

Precision Poured Precast Concrete
Our manholes are manufactured in a controlled environment, ensuring consistency and structural integrity. Precast concrete resists cracking and shifting better than cast-in-place alternatives, reducing the risk of leaks over time.

Watertight Joints and Gaskets
Each section of our manholes includes high-performance rubber gaskets or flexible sealants designed to meet or exceed ASTM and AASHTO standards. These joints are critical in preventing both infiltration and exfiltration, even under high groundwater pressure.

Custom Options for Specific Applications
Different environments call for different solutions. Del Zotto offers the products you need to meet the specifics of your project—whether it’s high groundwater tables, corrosive soils, or heavy traffic loads.

Request a Quote

Whether you’re upgrading an aging system or starting new construction, Del Zotto’s precast sanitary manholes are designed to meet your needs with efficiency, safety, and environmental performance in mind. Contact Del Zotto today to request a quote or discuss your project specifications.