Diy Dry Well Ideas . See more ideas about yard drainage, drainage solutions, dry well. Ask this old house mason mark mccullough installs a dry well for a homeowner with drainage issues in his backyard#thisoldhouse #asktohsubscribe to this old h. In this video series, I work on installing a Drywell in my backyard for from www.pinterest.com See more ideas about yard drainage, drainage solutions, dry well. Between each pour, tamp down the crushed stone with a hand tamper. Dig the hole and trench.