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→Pipes
==Pipes==
==Pipes==
Some clogging of perforated pipes is likely to occur between maintenance visits. As mentioned above a clogging factor of 0.5 is often applied. See [[Flow through perforated pipe]]. Various opinions are offered about how to mitigate the accumulation of sediment.
Some clogging of perforated pipes is likely to occur between maintenance visits. As mentioned above a clogging factor of 0.5 is often applied. See [[Flow through perforated pipe]].
Various opinions are offered about how to mitigate the accumulation of sediment. The appropriate solution may depend on whether the water is flowing into the pipe (see [[underdrains]]), or out of the pipe as in [[exfiltration trenches]].
==Filter media==
==Filter media==
Salty water has been shown to cause degradation of the filter media, and subsequent loss of the initial texture and flow conditions <ref>Kakuturu, S.P., and S.E. Clark. 2015. Clogging Mechanism of Stormwater Filter Media by NaCl as a Deicing Salt. doi: 10.1089/ees.2014.0337. [https://static1.squarespace.com/static/55c211c8e4b06ea5799e6c03/t/5605b199e4b08dbc6e74a369/1443213721385/Clogging+mechanism+of+stormwater+filter+media.pdf]</ref>
Salty water has been shown to cause degradation of the filter media, and subsequent loss of the initial texture and flow conditions <ref>Kakuturu, S.P., and S.E. Clark. 2015. Clogging Mechanism of Stormwater Filter Media by NaCl as a Deicing Salt. doi: 10.1089/ees.2014.0337. [https://static1.squarespace.com/static/55c211c8e4b06ea5799e6c03/t/5605b199e4b08dbc6e74a369/1443213721385/Clogging+mechanism+of+stormwater+filter+media.pdf]</ref>
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