SPECIAL FEATURES
Optimise cleaning performance
with the right accessories Selecting the correct accessories will maximise cleaning while minimising water use, tank refills, labour and headaches
For sewer pipe maintenance professionals, having the right tool for the job is essential to meet heavy workloads and resolve difficult cleaning challenges such as stubborn obstructions. Although purchasing a well-equipped vacuum truck is essential in this effort, so is the selection of the proper accessories, tools that can take their performance to another level and save considerable time, labor, and water resources.
Industry expert and consultant on vacuum sewer trucks Matthew Woods, V.P. of Sales and Marketing at Haaker Equipment, offers some of his top accessory choices and insights among the available categories of accessories. According to Woods, these accessories are essential to help vacuum sewer truck crews perform better and faster while handling some of the most difficult challenges in the field.
“The value of having the right accessory for the job cannot be overlooked in terms of operating safely, quickly, efficiently, and cost effectively,” says Woods. Haaker Equipment is a dealer of vacuum sewer trucks, sewer cleaners, pipe inspection equipment, and parking lot sweepers for the contractor, municipal, and industrial sectors in California, Nevada, and Arizona.
Accessory #1: Nozzles
As industry professionals understand, hose nozzles are some of the most important tools on vacuum sewer trucks and are used daily as the primary method of cleaning sewer, storm and sanitary lines. Nozzles direct pressurized water to clear out obstructions such as silt, sludge, grease, and mineral buildup as part of required maintenance or to prepare pipes for re-lining.
Although nozzles with many configurations are used, the industry rates nozzles in three tiers based on efficiency: Tier 1
62 | February 2022 |
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(approximately 30 percent efficient), Tier 2 (50 to 60 percent efficient), and Tier 3 (75 to 98 percent efficient). Most sewer vacuum trucks typically are outfitted with several Tier 2 nozzles, which are adequate for some jobs.
However, with the industry looking for more effective ways to conserve valuable (and expensive) water resources, companies like Haaker recommend purchasing higher efficiency nozzles with every vacuum sewer truck.
“Each Vactor truck comes with three Tier 2 nozzles, but we regularly recommend stepping up to a Tier-3 nozzle,” says Woods. “The ultra-efficient Tier 3 nozzles play a key role as fresh water becomes scarcer because the nozzles provide more efficient fluid mechanics to prevent the waste of water (GPM) and reduce operating pressures (PSI).”
“Today, most vacuum trucks are still filled with clean, treated, fluoridated drinking water [from hydrants], which is an increasingly costly resource to put down a sewer line to clean it,” adds Woods.
Among the Tier 3 nozzles he commonly recommends are the Aqua Power 700 and OMG which provide up to 98% efficiency from Spartanburg, SC-based KEG Technologies, a manufacturer of sewer and storm line products. The Tier 3 nozzles are more efficient and offer tight water patterns that efficiently clean the pipe wall and create a powerful water stream to move debris long distances and propel the nozzle.
“With a more effective Tier 3 nozzle, operators will get better performance and clean more pipe using less water. They will be able to clean more square footage of sewer line with the water available on the truck,” says Woods.
Reducing water also saves costs by eliminating unnecessary
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