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  1. scdean

    Tee into existing stack-retrofit

    Sounds good. Thanks for the help. Cheers.
  2. scdean

    Tee into existing stack-retrofit

    Mike: If that's the case, I owe you one. I have a couple of questions if you don't mind. This vent will be all dry. Do elbows have an equivalent length? i.e. is one elbow worth 5 ft of straight pipe or does it not matter in venting? Is there a table somewhere that I can show my plumber? I found...
  3. scdean

    Tee into existing stack-retrofit

    Right now there is a laundry tub, a washing machine and a floor drain. The vent is 1-1/2" about 20 feet with 5 elbows. I need to add a toilet, shower, vanity, and two more floor drains. The two extra floor drains are for 1) air conditioner, furnace and humidifier drain and 2) the bathroom where...
  4. scdean

    Tee into existing stack-retrofit

    Doing some reading of Bert Polk's document and it looks like you're absolutely correct. Maybe I'll have to find a different plumber... And find a way to get to that stack up higher :( I am reading that the rule of being 6" above the flood rim doesn't apply to the main stack. Can you comment on...
  5. scdean

    Tee into existing stack-retrofit

    I think you're clear on what you are seeing. The vent for the toilet on the right joins the stack way up in the attic, so well above the toilet. The vent I am adding will be from basement fixtures but, you're correct, this tee-in will be below the 2nd floor toilet. What you are looking at are...
  6. scdean

    Tee into existing stack-retrofit

    Here's a couple of pictures. In the left picture, the main stack is shown going up through the attic. The horizontal portion is the waste from a toilet that comes down from about four feet to the right. This is shown in the second picture. The 1-1/2" pipe to the right (barely in view) is a vent...
  7. scdean

    Tee into existing stack-retrofit

    I figured as much. Thanks for confirming. Looks like I've got a lot of piping to redo :( Cheers
  8. scdean

    Tee into existing stack-retrofit

    Hi all. I need to tee a dry vent into an existing 3" vent stack just below the attic but there are fittings above and below where I need to tee in so i can't separate the pipe to fit the tee in. I found something on a UK site called a strap-on boss but I've never seen anything like that here...
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