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→Design
===Design===
===Design===
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<div class="col-md-8">
<h4>Filter</h4>
<h4>Filter</h4>
The water in the barrel will remain fresher for use if leave litter is excluded. Leaves can be filtered out by a screen on top of the cistern, or by using a device fitted into the downspout.
The water in the barrel will remain fresher for use if leave litter is excluded. Leaves can be filtered out by a screen on top of the cistern, or by using a device fitted into the downspout.
<h4>Sizing Barrels</h4>
<h4>Sizing Barrels</h4>
Roof catchment area can be estimated using one of many online digital maps. e.g. Distance can be measured on Google maps by right clicking on the desired start point. <br>
Roof catchment area can be estimated using one of many online digital maps. e.g. Distance can be measured on Google maps by right clicking on the desired start point. <br>
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</ul>
Many people choose to reuse or recycle a container as a rain barrel or cistern. Re-purposed containers should be screened to prevent [[Pests#Mosquitoes|mosquitoes]] from breeding, and should be opaque to prevent algae from growing.
Many people choose to reuse or recycle a container as a rain barrel or cistern. Re-purposed containers should be screened to prevent [[Pests#Mosquitoes|mosquitoes]] from breeding, and should be opaque to prevent algae from growing.
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<div class="col-md-4">
<gallery mode="packed" widths=300px heights=300px>
RainBarrel.jpg| The screen on this rain barrel prevents mosquitoes from entering and screens leaves from the water.
</gallery>
</div>
<div class="col-md-12">
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===Performance===
===Performance===