The chain drop (rain chain) can be a decorative alternative in situations where a regular down pipe is not suitable, or where the designer desires a unique feature or look for the home. Surface tension causes the water to follow the chain to a ground drain or a bed of gravel.
Chain lengths should be limited to 1 to 1 ½ storey heights due to splashing.
More information on rain chains
Here you can see the different parts of a rain chain and how it is installed
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Here are several examples of copper rain chains
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Steel rain chains – Styles
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