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A comment on How French Drains Work. Parent comment

Re:How French Drains Work by datavirtue on Wednesday August 07, 2024 @01:18PM (#41183392)
The drain pipe is at the bottom of the drainage excavation. On top of the pipe is 3/4 aggragate, and on top of the aggregate is geotextile. Soil is filled in over the geotextile. There is no clogging risk in this design. Any soil particles that make their way to the pipe are carried away.
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Re:How French Drains Work by cityofdelusion on Wednesday August 07, 2024 @02:05PM (#41183780)
Fine clay and silt clogs the geotextile.

A proper drain requires extensive soil testing for particle size. Video goes over this along with the issues of geotextiles.

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Re:How French Drains Work by datavirtue on Thursday August 08, 2024 @01:56PM (#41194357)
Yeah, I saw that video and many others long before it was posted here. I stand by my comment, which is based on experience and reviewing the work of professional drainage installers on YouTube.

No one is doing soil tests for these unless they are installing huge critical commercial infrastructure.

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