Water drainage is misunderstood by many homeowners, builders, YouTube personalities and building inspectors, if my email in-box is any indicator. I’ve lost count of the thousands of drainage help requests entered on the Ask Tim page of my AsktheBuilder.com website.
Geology was my college major, with a specific focus on hydrogeology. That’s the discipline of subsurface groundwater and groundwater movement. I was also a young builder when geo-textile fabrics were becoming mainstream in road and parking lot construction. They’re often required to block silt from flowing overland on construction sites. Let that sink in.