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===Cistern===
===Cistern===
Expansion caused by freezing water will damage the barrel. The easiest way to prevent this damage is to drain and disconnect the system in advance of [[Winter#Freezing and Expansion|freezing temperatures]][http://climate.weather.gc.ca/climate_normals/].
Expansion caused by freezing water will damage the barrel. The easiest way to prevent this damage is to drain and disconnect the system in advance of [[Winter#Freezing and Expansion|freezing temperatures]][http://climate.weather.gc.ca/climate_normals/].
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For more information on planning considerations and site constraints see [[Site considerations]].
==Design==
==Design==