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===Flow control devices===
 
===Flow control devices===
LID facilities have been demonstrated to function well throughout frozen periods of the year even when all components were fully frozen for some part of the year. However, where the consequences of even temporary ponding would be entirely unacceptable, [[underdrains]] should be placed below the frost line to reduce the threat of ice clogging. [[Weirs]] are generally less prone to clogging from ice than [[orifices]] under all flow conditions, proprietary low flow devices are also available which are designed to mitigate clogging from ice or other solid debris.
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LID facilities have been demonstrated to function well throughout frozen periods of the year even when all components were fully frozen for some part of the year. However, where the consequences of even temporary ponding would be entirely unacceptable, [[underdrain]] perforated pipes should be located below the frost line to reduce the threat of ice clogging. [[Weirs]] are generally less prone to clogging from ice than [[orifices]] under all flow conditions, proprietary low flow devices are also available which are designed to mitigate clogging from ice or other solid debris.
    
===Rainwater harvesting===
 
===Rainwater harvesting===

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