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Old 02-10-2009, 03:20 PM   #1
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Modifying existing pipe


Hi
I have 2 problems similar in nature.
1) I need to install a Y fitting in a already existing 3 inch vertical pipe that runs from the basement floor up into the first floor.
If I cut this pipe, how can I insert the Y fitting, since I cannot move the upper part or lower part of the pipe?

2) I need to install a Y fitting into an already existing 3 inch horizontal pipe underneath the basement floor. If I cut this pipe, ow can I insert the Y fitting into the pipe, since I cannot move the left and right parts of the pipe?

All are plastic pipes.

Thanks.

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Last edited by altadata; 02-10-2009 at 03:27 PM.
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Old 02-10-2009, 05:08 PM   #2
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Modifying existing pipe


Can you loosen the upper section of the vertical pipe and pivot it sideways?

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Old 02-11-2009, 12:48 AM   #3
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Modifying existing pipe


Ayuh,...

If you can't manage enough Wiggle room for the plastic install,...

Use Fernco rubber couplings...
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Old 02-11-2009, 12:09 PM   #4
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Modifying existing pipe


Go with No-hub couplings and hubless fittings. Cut out the section of pipe 1/4" longer than the fitting, put a coupling on each of the pipe ends (don't forget to also slide the metal shield on the pipe first) and pull back the rubber over itself. Slip the fitting in and pull the rubber back and over the fitting. Slide the shield over the rubber and tighten up the clamps. In many areas, No-hub couplings are allowed under concrete or underground, and Fernco are not.
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