What Are These Holes In My Basement Floor? - Concrete, Stone & Masonry - DIY Chatroom Home Improvement Forum

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Old 09-03-2012, 04:41 PM   #1
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What are These Holes in My Basement Floor?

First post so I hope I've got the right forum for this. I moved into an Alberta home built in 2003 earlier this year. The basement was framed and wired by the previous owner with one room completely finished.

Now I am starting to plan how to finish the rest of the basement and there are a few of these holes in the basement floor. There are two in the furnace room (plus a separate drain) and two near there where the rough in for the bathroom is.

I dug down about 6-8 inches in the hole pictured and hit some water. There is no odour and no pipes either that I could see. Does anyone know what these holes are for?



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Old 09-03-2012, 09:06 PM   #2
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It's hard to tell how large that hole is by the picture....but it looks like a sump pit to me.


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Old 09-05-2012, 12:11 PM   #3
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Sometimes you will see these without pumps in them, because the pumps were not deemed necessary. Sometimes the well will adequately relieve the hydrostatic pressure itself.
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Old 09-05-2012, 09:49 PM   #4
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That hole only looks to be about 8" around, and it doesn't sound like it has a bottom to it, so I highly doubt it was intended to be a sump basin. One can only guess what it's purpose may have been when installed, but I'd likely have no problem tearing them out & patching the floor.........
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