Started by sharbin, May 30, 2008, 10:30:44 PM
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Quote from: sharbin on December 02, 2011, 03:42:54 PMSo the 6 mil was laid down in the crawlspace (and covering the whole hight of the wall) and the access door was built. That was 2 weeks ago. Last weekend I went up there and started to install the sump pump by boring into the rim joist using 1 3/8 inches boring bit to later realize that the 1 1/4 inches pipe needed almost a 1 3/4 inches hole, which I did not have the bit for it. This coming weekend they are announcing sunny skies but with -11 Celsius so not sure if it is doable or may be it is too late for this year to install the pump. we'll see.
Quote from: Redoverfarm on December 02, 2011, 05:26:43 PMYes probably the IS diameter of the pipe. If it is just 2X (1-1/2") you can probably use a saber saw or sawzall to widen it to except the pipe. If you do find the right size bit just temporarily attach a small piece of ply (wood screw) and you can re-drill to widen the hole by using it to guide your pilot bit. Otherwise there is no way to get it lined up. In your case attach it to the outside, go inside and partially drill through the same hole with the original bit. That will give you the pilot hole dead center. Then go to the ouside and drill with the larger bit using the pilot hole you just made.