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Water Portal / Rainwater Harvesting / Surface water / Tyrolean weir

10 bytes added, 22:58, 31 May 2012
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[[Image:Tyrolean_weir_icon.png|right]]
==Suitable conditions ==
{{Climate_change
|heading1=Drought effects on cement
|text1='''Effects of drought''': Badly made concrete or cracked linings (e.g. in tanks, dams, waterways, wells, and other structures). <br>'''Underlying causes of effects''': Less water used for curing; Impure water used for mixing. <br>'''To increase resiliency of WASH system''': Ensure adequate mixing, ratios, purity of ingredients; Minimize water content in mixture; Ensure adequate curing.
}}
 
Tyrolean intakes are used in small permanent rivers and streams where the sediment content and bed load transport are low, or on the crest of a dam spill.
| con=
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==Resilience to changes in the environment==
 
====Drought effects on cement====
'''Effects of drought:''' Badly made concrete or cracked linings (e.g. in tanks, dams, waterways, wells, and other structures). <br>
'''Underlying causes of effects:''' Less water used for curing; Impure water used for mixing. <br>
'''To increase resiliency of WASH system:''' Ensure adequate mixing, ratios, purity of ingredients; Minimize water content in mixture; Ensure adequate curing.
==Construction, operations and maintenance==
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