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*[[Sand filters]] (well suited for underground [[infiltration]]);
*[[Sand filters]] (well suited for underground [[infiltration]]);
*Concrete sump pretreatment device. [https://acfenvironmental.com/products/stormwater-management/filtration/rain-guardian/ Rain Guardian] is one example of a proprietary sump device.
*Concrete sump pretreatment device. [https://acfenvironmental.com/products/stormwater-management/filtration/rain-guardian/ Rain Guardian] is one example of a proprietary sump device.
See [[Pretreatment features]] for guidance on sizing.
==Concentrated underground flow==
==Concentrated underground flow==
This article is particularly heavy on proprietary systems and information. Please inform us of any omissions or broken links using the box below:
This article is particularly heavy on proprietary systems and information. Please inform us of any omissions or broken links using the box below:
[[category: Pretreatment]]
[[category: Pretreatment]]