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Thread: Please review this drain rough

  1. #1
    DIY Junior Member roskoe99's Avatar
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    Default Please review this drain rough

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    Greetings all. I wanted to get some opinions on the drain shown in the attached photos, which was recently roughed in by my plumber in connection with my remodel of an upstairs bath. As you can see, the drain was brought down on one side of a girder, but the floor tie-in is on the opposite side of that girder (not sure why since there is good access from the side nearest the drain). Should I be concerned about the four elbows I am counting within this short span? Assume my plumber will resist re-piping….are my concerns valid? Is this a must do-over or is it ok? Appreciate some advice from the pros.

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    In the Trades Tom Sawyer's Avatar
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    It's fine. Won't cause any problems
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

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    Moderator & Master Plumber hj's Avatar
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    It might not be the way I would have done it, but then, I don't know why he did it that way. If there was some "overriding" reason, then it might be the "best" way. The piping above the floor might be more important, concerning how it was installed.
    Licensed residential and commercial plumber

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    DIY Junior Member roskoe99's Avatar
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    Quote Originally Posted by hj View Post
    It might not be the way I would have done it, but then, I don't know why he did it that way. If there was some "overriding" reason, then it might be the "best" way. The piping above the floor might be more important, concerning how it was installed.
    Thanks. I don’t believe there was any limitation dictating where the drain should be run—it’s just the way he decided to run it. The new dwv replaces an old iron corner stack. That iron stack was venting the toilet, and the bath also had a separate 2" galvanized vent for the sink and tub. The new dwv ties into the galvanized vent up near the bathroom ceiling, runs down the wall, across a 6' floor, and then down the wall to the basement as shown. I've attached a pick of the vent from the bath. Anything catch your eye? I'll post some pics of the rest of the rough later.
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    Moderator & Master Plumber hj's Avatar
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    Nothing to go by as far as dimensions are concerned except by the laths, but the drain may be higher than most plumbers would make it, unless he is working to the specifications of a particular sink.
    Licensed residential and commercial plumber

  6. #6
    DIY Junior Member roskoe99's Avatar
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    Quote Originally Posted by hj View Post
    Nothing to go by as far as dimensions are concerned except by the laths, but the drain may be higher than most plumbers would make it, unless he is working to the specifications of a particular sink.
    Thanks. Good point, I will have to confirm the height of the sink, which sits on a wash stand. What is considered acceptable amount of wiggle room? Also, the sanitary t is too high for the finished floor. Here are some pics of the rest of the rough -- had to reroute the vent as the plumber overlooked the inset medicine cab. Hopefully he paid attention to the rest of the cut sheets.
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    DIY Junior Member 41Fever's Avatar
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    Don't know if rough in plumber knew about inset medicine cabinet or not, but sure he would have brought vent to 6" above flood rim before going horizontal if he had!

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    DIY Junior Member roskoe99's Avatar
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    Quote Originally Posted by 41Fever View Post
    Don't know if rough in plumber knew about inset medicine cabinet or not, but sure he would have brought vent to 6" above flood rim before going horizontal if he had!
    Do you think its close enough not to cause any problems? The rough inspection was already completed BEFORE the plumber re-routed the vent.

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