How to Install a Packaged Metering Manhole

Packaged metering manholes have much to offer when you’re looking for a convenient solution for taking underground flow rate measurements. Whether you’re utilizing a manhole with a built-in measurement device like a flume or one that’s going to be added to an already existing device, you’ll need to know how to set one up properly. Learn how to install a packaged metering manhole.

Set the Manhole

The first step to setting the manhole in your designated spot is to excavate the area. This can be quite labor-intensive, so be prepared for a lot of work. You’ll have to excavate far more than solely the space the manhole will be taking up since you’ll need room to maneuver during the process and ensure you can properly secure the manhole in place. One of the most common methods to install a manhole is to set a concrete pad at the bottom of the excavation area. When you do, it’s important to ensure that the pad is smooth and level to ensure the manhole is sturdy and stays in position correctly. Wedge anchors are then used to set the manhole in place.

Connect the Manhole to the Line

Your manhole won’t serve much of a purpose if it’s not connected to your flow channel line. Fortunately, connecting it to the line is relatively simple. For the most part, manholes are designed with some pipe stubs that allow for easy installation. In some cases, however, you may need additional extensions or connectors to ensure that the connection is sealed and offers the right conditions for flow rate measurements. Keep in mind that your connections may need some extra protection if you’re working with any high temperature or chemically aggressive flows. Neoprene or molded fiberglass connectors and accessories can offer the durability you need. Once the connection here is complete, you can turn the flow back on if you like. The rest of the installation won’t affect it.

Backfill the Site

The final step is to backfill the site that was excavated for the installation. The most important thing here is ensuring that the manhole is flush with the surrounding environment. If you’re installing a manhole on a sidewalk, for example, you’ll want to make sure that the top is at the same level as the ground so as not to be a trip hazard. If your manhole isn’t quite the same size as the surrounding environment, there are some modifications you can make. If it’s a bit too short, you can simply keep adding grade rings until you have it at the right height. If it’s too tall, however, that will require a bit more work. You’ll need to actually cut off parts of it until it’s at the right height, which can be difficult and potentially not an option in some cases.

Manholes from Tracom

Now that you understand how to install a packaged metering manhole, it’s time to obtain one of your own. That’s where Tracom can help. Work with our team to design and create a manhole perfectly suited for your unique needs. Contact us today to get started!