According to the EPA, there are approximately 12 million sewer and stormwater manholes throughout the United States. These manholes typically correspond to the lengths of blocks within a city, typically spaced between 100 – 250 feet apart. However, it is shocking to find out that nearly 80% of these manholes need some level of maintenance or rehabilitation, according to .
In order to ensure a sewer or stormwater system is functioning properly while maintaining public safety, regular manhole maintenance is required. Common manhole riser maintenance tasks include:
Since there are no mating surfaces to contend with the WhirlyGig Manhole Riser does not require any maintenance to deal with degradation within the riser stack. Our thermoplastic form is a monolithic structure which is impervious to the elements and when properly installed will provide at least 25 years of maintenance-free service.
At WhirlyGig, we provide a manhole riser solution that inherent to its design results in a much easier, more cost effective, higher quality and safer installation compared to traditional methods such as concrete grade rings. With the Whirlygig Manhole Riser solution you “Set it an forget it!” and can expect at least 25 years of maintenance-free service
Want to learn more? Contact WhirlyGig by filling out our online form or call us at 1.800.307.4263. We would love to hear from you and look forward to helping you recognize the value of the WhirlyGig system as the premier manhole riser solution.