Water backing up from sealed off mystery drain in the basement

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sonicwind

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We recently discovered water in the basement of our 1950 brick home in west suburban Chicago. It appears to be coming up from an unused drain which has been sealed off with concrete for at least the 50 years our family has lived there. The house was built by the original homeowner himself. This old drain is sealed flush with the concrete floor.

What is this drain? Any way to tell? What to do about it? Is there a solution?

Possibilities that have been suggested to me as to what it is:
1) The unused drain pre-dates the house being built. But we know this property was open land before the house was built.

2) The drain is from the original (unused) location for a toilet. This seems unlikely, as the drain is in what would have been the center of the basement at the time. The basement toilet he built instead is perhaps 18 feet away, in the corner of the house, where the water lines come into the home.

3) The drain might be an old sump pit for a sump pump, which he never used as he sealed it off with concrete when the basement was built. This seems more likely than the toilet idea.

4) The most likely answer to my untrained mind, is that this was the original location for a basement floor drain. Until he discovered that it was not the lowest part of the basement floor, after which he relocated the basement floor drain about 10 feet away in the main room of the basement, where it is today.

I greatly appreciate any help and thank you for your time. Photo attached.
 

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Your floor drain idea sounds right, it's possible you could snake this drain to see if it clears and drains away, if it's constantly leaking, it's something you should not touch,
Call a professional plumber or drain cleaner and get their opinion they will have the proper fitting to block off the drain,they could even use a camera to see what it connects to that way you know why it was there
 
Your floor drain idea sounds right, it's possible you could snake this drain to see if it clears and drains away, if it's constantly leaking, it's something you should not touch,
Call a professional plumber or drain cleaner and get their opinion they will have the proper fitting to block off the drain,they could even use a camera to see what it connects to that way you know why it was there

Thanks for your reply Geofd. I have a really dumb question. The drain is sealed off with concrete, so I don't think I can snake it. Would a plumber be able to open it and block it off, even though it's been sealed with concrete? Obviously this would tear the floor up.
 
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