We are beginning to see ultrasonic level sensors placed in manholes. These devices text the homeowner and the drain company before the blockage occurs, predicting a 80% fill level. The 24-hour call-out becomes a 24-hour prevention . The emergency evolves into a scheduled maintenance. St Albans is justifiably proud of its cathedral, its Roman walls, and its vibrant high street. But the true heroes of urban livability are the drainage engineers who work from sundown to sunup, knee-deep in water, re-lining pipes while the city sleeps.
By an Infrastructure Analyst
At 11:47 PM on a wet Tuesday in November, a family in the historic Bernard’s Heath area of St Albans hears a gurgle from their ground-floor toilet. Then another. Within minutes, raw sewage is backing up into their bathtub. They call a number. Within the hour, a van with high-pressure water jetting equipment is navigating the narrow, winding streets that have defined this city since the Roman settlement of Verulamium . 24 hour drain clearance st albans