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Par conséquent, le tuyau éclate. Au cours de l'inondation, la température extérieure atteint - 25°C et l'eau qui coule du tuyau et touche les objets se trouvant au-dessous, gèle. Heureusement, le bâtiment est doté d'une canalisation sanitaire centrale au sol, sans quoi le niveau de l'eau aurait pu atteindre un mètre ou plus avant de se transformer en glace.
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The Cumberland Heritage Village Museum's storage facility is an old fire hall owned by the City of Ottawa. Objects stored in it consist mainly of domestic furniture, agricultural implements, an upright piano, a pump organ, and archival records relating to the history of the museum. City staff inspected the facility once a month during winter 2003. During one of the regular inspections, it was discovered that over 2,000 m3 of water had leaked from a broken ¾ in. water pipe in the roof after both furnaces had broken down. The cause appears to have been a malfunction of the roof-mounted furnace — a failure of the oil supply resulted in the furnace shutting down, thus freezing the building and causing a pipe to burst. During this flood, the outside temperature dropped to –25°C, causing the flowing water to freeze. The water had cascaded onto the objects below. It was fortunate that the building had a central drain, otherwise the water might have risen a metre or more before freezing solid. It is unknown exactly when the leak occurred, but it was thought to have been within a two-week period preceding the inspection because no one had been there in the meantime. Had it not been for the inspection, the leak would not have been discovered until much later. Due to the location of the leak, only about 15 to 20% of the storage room area was affected.
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