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Sump Pit Cover Access Hole — image 1
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Sump Pit Cover Access Hole

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A nearly-flush mounted screw-in access cover for a sump pit that fits into a 6" hole on a sump pit cover.

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A nearly-flush mounted screw-in access cover for a sump pit.  My home radon system pulls air through a sealed cover of my sump pit.  I previously had a 6" pvc cleanout installed in the pre-cut 6" hole, but it was bulkier and stuck up higher than I liked.  Designed this to replace that pvc cleanout and have a much lower profile.

Print notes: 

  • Insert: printed with the overhang on the top-side;  this required quite a bit of supports, but my first attempt at printing the other way was unsuccessful. Supports only needed along the outside and a portion of the bottom thread.
  • Plug:  printed top-side down; this only required supports for the finger holes

Post-print, it was initially a bit rough to get it to screw in.  After a few minutes of screwing it in/out many times, it now operates smoothly.

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