Fats oils and grease (FOG) blocking a 600m-long sewer rising main on Yorkshire Water’s network have been cleared by HTC, part of the Aquam group. Using HTC’s Whirlwind™ air vortex pipe cleaning system, Aquam were brought in by contractor Balfour Beatty Utility Solutions on this challenging project. The Whirlwind system can be used with or without aggregate depending on the application. On this occasion aggregate was not required to bring th

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