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"Modern drain cleaners tend to come prepared to use snake-style machines, high-pressure water jetters, flexible shaft devices and pipe inspection camera systems. According to Jeff Albertini, director of marketing, plumbing and mechanical for RlDGID, there's a large movement toward Wi-Fi/Bluetooth-enabled camera reels that can stream and record live video to any smart device. [...]when cleaning a sewer pipe, the drain cleaning professional is working in a dangerous and contaminated workplace, where situational awareness and personal hygiene measures are absolutely required. [...]a clogged sewer can have many different causes, and the contractor must keep an open mind to avoid misdiagnosing the problem.