...ok, I have to ask, what is a "watercannon" train?
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These are the RHTTs (Rail Head Treatment Trains) that operate throughout the autumn (fall) and early winter to clear away dead leaves and treat the rail with 'sandite' - an adhesive sand-like material to improve wheel/rail adhesion. The treatment wagons start each year in their bright glossy blue livery and after a few weeks they are covered in sandite! So are the locos!
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Incorrect, it sprays water only and at a very high pressure, hence the term "watercannon". I have found a good description of the observable equipment differences between sandite-applying wagons and watercannon ones:
"The sandite units have three tank modules and three cubicles. The water only have one cubicle (the pump) and more tank modules."
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OK, smartarse!
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As for the 2007 leaf clearing season, ALL trains involved with this work, whether Sandite or Water Cannon equipped are officially class as RHTTs - Rail Head Treatment Trains.
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