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Old 10-02-2011, 09:22 AM   #1
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Can I run interior foundation drain into Floor Drain?


Good day all,
I have 50's bungalow, on the driveway side of my basement I have efflorescence which (I think) is due to hydronic pressure. I assume that my
weeping tiles are no longer functioning. The original system drains into my floor drain. I'm thinking of trenching under my slab and running big "o" and tying it into the floor drain's vertical tee. Is this advisable or should I install a sump pit in the corner and run the big "O" to it.
Many thanks!

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Old 10-02-2011, 09:24 AM   #2
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Can I run interior foundation drain into Floor Drain?


When I dug out the slab towards the middle of the bsmnt to tie in my drain for a 3pcs bath there was ground water in my trench there, but not on the other side of the bsmnt.

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Old 10-02-2011, 09:26 AM   #3
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Can I run interior foundation drain into Floor Drain?


I thought the big "O" was something Playboy was pushing about 20 years ago. What is it now?
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Old 10-03-2011, 09:09 AM   #4
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Can I run interior foundation drain into Floor Drain?


Where does the floor drain ultimately lead to?

With the weeping tile system around the basement perimeter working properly there should not be ground water higher in the middle of the basement compared with at any edge, the exception being an underground stream passing directly under your house.

Ground water such as might otherwise flood the basement must not end up in a septic tank system.
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Old 10-03-2011, 02:38 PM   #5
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Can I run interior foundation drain into Floor Drain?


I assume the floor drain ties into my main sewer line which is combined storm/ sanitary. Seeing how the only efflorescence is on the driveway side of the bsmnt the weeping tile must be wrecked or clogged there. I'm in the city not on a septic sys. I'm going to be finishing that side of the bsmnt this year so I really want to resolve any potential issues before hand.

Last edited by montelongo; 10-03-2011 at 02:41 PM.
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Old 10-03-2011, 03:47 PM   #6
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Can I run interior foundation drain into Floor Drain?


To resolve things before finishing the basement you need to get the weeping tile system in working order. There must be a sump pump somewhere in the basement and it should be operating for at least two weeks with the ends of the weeping tiles as seen in the pit not submerged between pump starts.

After that check to see if the basement wall has dried up.

If you need to dig up the floor to redo the weeping tiles, better to accomplish that before finishing the basement.
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Old 10-03-2011, 04:13 PM   #7
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Can I run interior foundation drain into Floor Drain?


Thanks, Allan. I guess I'll do the interior big "O" draining into a sump pit since we don't want to spend a fortune digging up the driveway.

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