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Old 04-19-2010, 04:21 PM   #1
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New Floor Drain in Existing Concrete Floor


I need to cut in a floor drain in my unfinished basement. I want it to look clean once the concrete is patched. What is the best way to cut the concrete to have a clean edge? A friend of mine is a excavator and has a Stihl saw used to cut concrete pipe, but it makes lots of dust and the gas smell in the house would be horrendous! Any ideas?

Also, the floor drain (PVC) I bought has a 2" outlet. The existing main sewer is cast iron (either 4" or 6"). I was planning on using an 4or6"x2" wye, with a short piece of 4or6" pipe out of each end and a Fernco style fitting on each end. Does this seem right? How do I cut the existing cast iron pipe?

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Old 04-20-2010, 07:26 AM   #2
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New Floor Drain in Existing Concrete Floor


Cast iron is cut with a chain breaker--you can rent those.

Fernco's should work. You may need to go to a plumbing supply house for the right size.

Floor drains need a P-trap.

Clean cuts in concrete can be made with a circular saw with a diamond blade.

This can kill the saw.

---Mike--

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Old 04-20-2010, 08:31 AM   #3
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New Floor Drain in Existing Concrete Floor


Mike,

Thanks for the info!!! The floor drain I bought is PVC and has a trap and plug built into it. It has a 2" outlet approximately 2" below the elevation of the rim of the drain. Will that work?
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Old 04-21-2010, 06:51 AM   #4
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New Floor Drain in Existing Concrete Floor


That should be fine--Don't forget a floor drain needs a P-trap.--Mike--
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