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    Amateur_vince's Avatar
    Amateur_vince Posts: 12, Reputation: 1
    New Member

    Jun 7, 2006, 09:50 AM
    Floor Drain...

    Your help in the pass have been very helpful and appreciated. I got one quick question for you:
    I want to replace my rusted floor drain with a new plastic one, just that simple... however it looks like the old rusted 2 inch floor drain has a vent 1/2 inch pipe attached to left side of where the P-trap is at (that's just my theory). I can see this 1/2 inch pipe travels vertical up along side with the 4 inch main stack pipe and into the wall. Do you know what is the purpose of this 1/2 inch pipe used for? Do you see any problems of putting in the new floor drain that is not identical to the old one so that I don't have to worry about this 1/2 inch pipe?

    Again, your help are deeply appreciated.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber

    Jun 7, 2006, 03:53 PM
    Hey Vince,

    Since floor drains do not requirea vent what you have is a Drain from something. It could be a AC condensate drain, a drain from a washer pan or a line from the heater T&P valve. But whatever, it's not a vent. If your old floor drain is cast iron I can make it easy for you. Cut the cast iron close to the hub of the pipe it's joined up with leaving about 1 1/2" of stock you mjay then use a NO-Hub Band, to connect the new floor drain to the drain line. Easy huh? Cheers, Tom

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