Pipeline cleaning and the subsequent CCTV video inspection are the first steps in the process of restoring pipeline to its original operating condition. Pipes are scoured with water propelled high pressure jets to remove debris and allow the best possible video of the pipe interior. A variety of specialized nozzles and cutters may also be used to remove hardened deposits and root intrusions. This fundamental cleaning process allows the camera to capture the current conditions within the pipe and assist in determining the repair options available.
Harben jetters produce 4,000 psi at 12 gpm with a 500 gallon water tank. These units are effective in cleaning pipe from 2” to 8” in diameter.
Combination machines containing both pipe cleaning and vacuuming capabilities produce 2,000 – 2,400 psi at 60 to 80 gpm. On-board water tanks hold 1,500 gallons for pipe cleaning procedures and a ten-yard debris tank retains material removed from the pipe during the cleaning operation.
MSI specializes in large diameter pipe cleaning and debris removal. Powerful nozzles emitting jets of high-pressure water move the debris out of the pipe for disposal. When hydro-cleaning is not possible due to logistical issues or environmental concerns, bucket machines are utilized to drag debris from inside the pipe to the removal area.
MSI performs culvert cleaning using high pressure water jets or, in more severe cases where debris has solidified, bucket machines and winches. In either case, debris removed from the culvert is deposited in an accessible area for disposal.
Bucket machines are used in place of combination trucks to clear large diameter pipe of rock, soil and debris. Material removed from the pipe is collected and loaded on trucks for disposal. This method of pipe cleaning requires no water simplifying the clean-up process and is particularly useful when conforming to environmental requirements.
MSI uses a double drum pull winch to remove large quantities of material from large diameter pipe. The smaller of the two winches utilizes a 5/8” cable to haul out material with a pulling force of 30,000 lbs. at the rate of three yards per cycle. The larger winch carries a 1 1/8” steel cable and has a pulling force of 75,000 lbs.
Small diameter perforated horizontal hillside wells used for landslide mitigation require periodic cleaning to remove built-up deposits. Hydro-powered jet nozzles capable of delivering up to 4,000 psi mounted on a trailer can effectively clean pipe from 1” to 8” in diameter. The overall size of these mobile units makes them especially useful in hard to reach areas inaccessible by larger vehicles.
Manhole and Lift Station Cleaning
MSI cleaning units are equipped with hand-held water guns capable of generating a high pressure spray directly at the exposed surface to remove aggregated build-up. This process is used for standard maintenance purposes or in preparation for restoration of the structure.