THE MAGAZINE FOR THE DRAINAGE, WATER & WASTEWATER INDUSTRIES
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and time-stamped for later downloading by Wi-Fi to mobile devices or PCs for viewing.
“During routine cleaning, the nozzle-camera captures video that can show if there are roots in the pipe that should be removed before they even become a problem. If the roots cannot be removed by the action of the nozzle itself, an operator can go back in later with a chain cutter,” says Woods.
Accessory #3: Chain Cutters
When sewer or storm lines become blocked, tree root growth is often the cause. Blockages can also occur due to accumulated hard mineral deposits, grease, silt, or debris.
extra trips to refill the truck’s water tank and keeps crews effectively on task.
Accessory #2: Sewer Line Cameras
Having a camera or nozzle-camera can help operators assess pipe condition without a CCTV truck. A camera is often necessary to not only locate pipe offsets, collapses, and infiltration but also avoid obstacles that could trap a nozzle. Video or photo documentation of before-and-after pipe condition is advantageous to ensure the pipe is completely free of obstructions.
“Without using a camera, sewer truck operators are going into the pipe ‘blind’ and do not know what is down there or what they are cleaning,” says Woods. “It is much easier for crews to clean once they identify what is going on inside the pipe. With this information, the operator can apply the right tool or technique and speed completion of the job.
According to Woods, a pole-mounted camera like the Quickview airHD from Envirosight can be used to quickly assess sewer lines from an adjoining manhole to determine if they need cleaning, repair, or further inspection. Wi-Fi wireless control and video eliminates cables and allows live video sharing on multiple devices.
“The Quickview camera makes it easier, faster and more affordable for crews to quickly assess the sewer condition. The pole-mounted camera allows the prioritizing and allocating of resource-intensive inspection and cleaning crews, to keep the operation running smoothly,” says Woods.
To further simplify inspection further down the sewer line, some manufacturers in the industry have developed camera nozzles that capture video while cleaning.
Woods points to KEG’s KleenSight camera-nozzle system, which provides operators the ability to clean sewer and storm lines while recording upright high-definition video. The device has a self-leveling camera head and provides its own illumination. Only a jetter hose connection is required – no cables or wires. The camera captures the video in memory and the files are automatically date-
FOLLOW US February 2022 |
When a severe blockage is identified, chain cutter nozzles might be required. Most are hydraulically powered, which reduces the overall cost of the unit, but many supply sufficient power or torque to cut through heavy roots or hard mineral deposits. In some cases, the unit can stall or seize up.
Chain cutter nozzles that utilize water pressure are more efficient and can deliver the required torque to cut through thick masses. In this approach, high-pressure water enters the chain cutter nozzle chamber and is directed to spin the cutting chains at high velocity.
As an example, Woods points to the SuperNova 4000 Chain Cutter, which has a high speed, high torque, water-driven design that can eliminate heavy root blockages as well as scale, rust, mineral deposits, hardened grease, and even protruding taps such as concrete and cast iron. The chain cutter is designed for use in offsets, pipe rips, and protruding taps.
Accessory #4: Sewer Maintenance Tools
Another valuable addition to the accessory list is the broader category of general “tools” that simplify tasks and improve efficiency. This includes items such as manhole hooks/picks, telescoping claws, sewer brushes, debris baskets, tubing transition couplers, vac-traps, and the like.
“For sewer cleaning and maintenance, there are many special tools and accessories that crews use on a daily basis that facilitate safety and productivity,” says Woods.
For a variety of superior sewer maintenance accessories and equipment, KEG Technologies’ dealers provide high quality, specialized sewer cleaning tools for vacuum trucks and municipalities.
The bottom line
The bottom line for sewer pipe maintenance professionals is that having the right accessories can significantly improve the speed and quality of cleaning by any work crew, while conserving water.
With so much to gain, cleaning crews are advised to spend the time and energy investing in the accessories they need. Those that seek out best-in-class options and use them effectively to complement the vacuum sewer truck itself will enjoy dramatically improved performance and productivity.
KEG Technologies OMG 1-inch penetrating and Aqua Power 700 nozzles
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