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Thread: Where to tap of to connect drain for laundry room

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  1. #1
    DIY Junior Member lupe's Avatar
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    Default Where to tap of to connect drain for laundry room

    I would like to tap into this main drain for a laundry room.
    Where should I tap into ?
    Would it be a mistake if I connect to the clean out ?
    I can unscrew the cap "whatever its called"
    Pics are provided.

    Thank You
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  2. #2
    Plumber krow's Avatar
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    The "T" on its back should really be a 4" "y". From the pic it looks like 3".
    and the cleanout should not even be there. You should always have a clean sweep when doing underground drains. You have the potential to have drain cleaning problems.

    If you remove the cleanout and the "T" , you can replace them with a 4" "y' on the horizontal and 45 and a branch "Y" to your laundry facilities. You can use a "T" vertically but not horizontally unless you are using it as a back vented "T".

    I hope that made sense


    Sheesh, I almost confused myself

  3. #3
    Commercial Plumber markts30's Avatar
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    Quote Originally Posted by krow View Post
    The "T" on its back should really be a 4" "y". From the pic it looks like 3".
    and the cleanout should not even be there. You should always have a clean sweep when doing underground drains. You have the potential to have drain cleaning problems.

    If you remove the cleanout and the "T" , you can replace them with a 4" "y' on the horizontal and 45 and a branch "Y" to your laundry facilities. You can use a "T" vertically but not horizontally unless you are using it as a back vented "T".
    Agreed...
    Replace the san-t on it's back with a combo then pick up the current drain with another combo (or san-t) and dump the new drain into the top of the tee catching the horizontal branch...
    (did I just confuse things more?)
    LOL
    Where in PHX are you located?

  4. #4
    Master Plumber master plumber mark's Avatar
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    Talking cut into the two inch, leave the 3 inch alone.

    Made a mistake , though it was 3 inch he was fooling with...

    Everyone is saying that is 4 inch and a 3 inch tee with a
    clenaout correct???..

    I know it is wrong,
    but it looks like that has been in the ground for a long time
    and has been working fine for decades..........

    that cleanout was probably put in the line years ago
    becasue they probably had to water test that line and had
    to put a test plug into that tee....

    they they abandoned it underground...

    you can always cut the whole thing out if you so wish,
    but you will end up having to cut that cast iron back another 5 inches or
    so to get a wye into the place where that the tee is in now....

    that could get real, real mean....
    and its been working fine for years and years....


    god gave you that 3 inch clean out for a reason...

    now you figure you what you ought to do.........

  5. #5

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    I don't think that's cast iron - look at the size difference in the Ferncos. It's either terra cotta or cement pipe.

  6. #6
    Master Plumber master plumber mark's Avatar
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    Talking I really want to play with that stuff

    Quote Originally Posted by Herk View Post
    I don't think that's cast iron - look at the size difference in the Ferncos. It's either terra cotta or cement pipe.

    boy , now that would make for a fun day.......

    stand on your head and tear into a tile line just to put a wye in
    when you got that beautiful cleanout just stareing you in the face............



    that is called...... shooting yourself in the foot

    or........ breaking it off in your own rear end.....LOL

  7. #7

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    Quote Originally Posted by markts30 View Post
    Agreed...
    Replace the san-t on it's back with a combo then pick up the current drain with another combo (or san-t) and dump the new drain into the top of the tee catching the horizontal branch...
    (did I just confuse things more?)
    LOL
    Where in PHX are you located?
    I leave in west phoenix.

  8. #8

    Default pic of a 4" "y".

    Can someone post a pic of 4" "y".

    Thank you..

  9. #9
    I&C Engineer (mostly WWTP) Lakee911's Avatar
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