critique my dwv model

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Tyler T, Jul 24, 2008.

  1. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    hey guys, i was hoping you could review my diagram before i tackle this project. the home is in florida so the code is ipc. this is an old house with crawl space. i removed all the old cast iron and will be replacing with abs. also this will be a connected to the new city sewer which they conveniently placed almost directly in front of a 100 year old oak tree! i know its a lot to look at, but in actuality, its a tiny 850 sq.ft house. this is for a rough in, traps will be added to the lav's and kitchen sink after. any thing i should change or do differently? greatly appreciated.
    red=3in
    green=2in
    yellow=1.5in

    Attached Files:

  2. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    Hmmm pretty drawing but I'm lost... How about some labels?
  3. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    thanks...i'll work on some labels next, heres a little more

    Attached Files:

    Last edited: Jul 24, 2008
  4. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv

    Attached Files:

    Last edited: Jul 24, 2008
  5. jch

    jch New Member

    I'm in a similar situation (needing to redesign DWV system) and have downloaded Google Sketchup.

    Where did you find the models for the ABS fittings?

    Thanks!
    .../j
  6. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    ok. couple of things you can do for the models with sketchup. one, you can download my model from sketchup from the link i posted and then you can simply copy and paste from my model to yours as you are working on it. or you can browse the 3d warehouse and load them in to your model. i used a few components from the aligre corporation set of models in the 3d warehouse, but most i copied and pasted from another model which i saw a link to on this forum... from what ive learned, there used to be a link on the charlotte pipe web site for auto cad pipe components which you could then download from the site but that link doesnt work anymore. you can order a copy of their pipe components on a cd however for free. oh and you can also go here http://www.thomasnet.com/cadlibrary....navsec=results and download these fittings from the site on to your computer in .dxf format and then import them into your sketchup model. i think a combination of these methods will get you alot of components you'll need. but there isnt a one stop shop for everything that i know of. hope this helps lemme know if you have any other q's.
    Last edited: Jul 30, 2008
  7. GregO

    GregO New Member

    Messages:
    73
    Location:
    Virginia
    air behind water

    Tyler,

    Looks to me like your leftmost water closet vent should be on the side of your cleanout (to the left), not the right. Think air behind water when venting.

    Greg
  8. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,689
    Location:
    Cave Creek, Arizona
    dwv

    The shower and right hand toilet vents do absolutely nothing, and definitely do not vent the shower or toilet. Putting a vent NEAR a trap is about as effective as putting your milk on a table NEAR the refrigerator and wondering why it spoils.
  9. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    Thanks for finally posting with the labels...

    I agree with HJ you are missing the concept when it comes to venting...
    The purpose of the vent is to protect the trap seal. The slug of water going by can induce positive and negative pressures which can remove water from the trap. The vent has to negate these pressures.
  10. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    hmm

    gentlemen, thank you for the insight. couple of specific questions:
    1) if the toilet by the cleanout is not vented in that configuration, how should it be configured? im stumped.
    2) is the wet vent configuration on the other toilet correct?

    i understand about the tub vent and i will re-work that. thank you for your time.
  11. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    The toilet by the cleanout: Take the pipe labeled toilet vent and attach it between the toilet and the wye below it.

    The other toitet appears to have been accidently wet vented by the lav... It works as longas you hook it up correctly.
  12. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    what type of fitting would this call for?
  13. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    I think I'm seeing a couple of flat vents there also which is a no no. The vent on the toilet is running flat and it does not need to be there. There is no distance limitation on wet vent system for the toilet.
  14. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    NH Master, Are you referring to the Laundry Standpipe "Wet Venting" the toilet?
  15. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    I took a second look at it and it appears ok. Nice graphics but somewhat confusing to look at. The fitting angles are a bit hard to decypher. give me an old fashoned isometric any day. Not too sure what the point of the whole excercize is either. That much piping is way beyond the scope of a homeowner to take on. Also, I'd be a little opposed to giving something like that the thumbs up or down because it could be misconstrued or misleading to the homeowner. This is the kind of project that requires a licensed plumber and a valid permit.
  16. Redwood

    Redwood Master Plumber

    Messages:
    7,450
    Location:
    Connecticut
    As always we okay the appearance of a drawing and the actual on site work determines its being okay or not. yes inspections and permits is a must.
  17. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    hey guys, thanks again for some feedback. i knew the graphics would be a bit much after i posted it all. i really wanted to hire a pro for getting all this done, but unfortunately nobody cared to give me an honest price. ive been in the remodel biz for a while so i know what this work entails and i couldnt justify paying close to 10k for a job which a couple guys will knock out in 3 days and cost less than 2k for material and permits. so i pulled the permit and am working with the inspector now. this site is great and theres a few guys on here who pull a lot of weight for the rest of us. so thanks.
    tyler
  18. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    I Know that when I need by-pass surgery the price seemed way out of line so I had my brother in law do it for me. Worked out ok I think.
  19. Tyler T

    Tyler T waiter, remodeler

    Messages:
    11
    Location:
    las vegas, nv
    haha i knew thatd get some flak. im not diminishing the trade whatsoever, but if ya aint got the money, and you can do it yourself and have some fun...then why not? some diy'ers are half assed...some are perfectionists...never assume the capabilities of others. :cool: but your right, id never have my brother give me surgery. good point, but this is a little different than that.
  20. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,689
    Location:
    Cave Creek, Arizona
    Diy

    ONe of the problems is "who said you were capable of doing it yourself"? If it is a self evaluation, then it comes under the same classification as, "Never proof read your own reports".
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