(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 12 of 12

Thread: Drum Trap Relacement

  1. #1
    DIY Junior Member Book3's Avatar
    Join Date
    Jan 2009
    Location
    Pittsburgh, Pa.
    Posts
    12

    Default Drum Trap Relacement

    While replacing the old galvanized water pipes in a home I recently acquired, I ran into a corroded drain pipes on the bathtub. My solution was to remove the drain and replace with pvc. The house has (had) a drum trap which I removed along with the all of the attached metal pipes and plan to connect to some existing pvc. If you look at the attached picture you see the trap and piping before I removed it. My question is concerning the P-Trap I want to install under the bathtub. Again looking at the picture, the bathtub drain comes down a few inches to the left of what is visible and entered into the bottom of the Drum Trap. The drain then exited near the top of the drum, which is halfway up the floor joist. Any suggestions as to how to span that distance and height with a P-Trap to connect to the existing pvc without cutting out half of the joist or drilling through it?
    Attached Images Attached Images  

  2. #2
    Plunger/TurdPuncher kingsotall's Avatar
    Join Date
    Aug 2008
    Location
    Flagstaff, AZ Sitting on an upside down 5 gallon bucket next to the GO 68HD
    Posts
    1,260

    Default

    Too much work for a DIYer. Best advice I can offer would be to give a plumber some business for the new year.

    (Looks like a can of worms I wouldn't wish on you, is all.)

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,655

    Default drain

    Actually that section of piping between the joists is "illegal" because it has created an "S" trap, and it will still be an "S" trap if you connect a "P" trap to it. The only legal way as far as not doing so is to run the PVC beneath the joists, but even then your distance is WAYYYYY too long to install without a vent.

  4. #4
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,246

    Default

    What you are beginning to learn is installing drains is a far more complex job than installing supply lines. You can make supply line go up and down, around corners, and/or through joists and although it make be considered a "hack" job, the end result is you'll have water. Drains have so much more to consider such as slope, vents, proper tees and elbows, pipe size, and because of size, you can't go through joists. I concur with the other writers that you would be well advised to engage a professional licensed plumber for this job. There are just too many things that you can do wrong. It is hard for us DIYers to admit when we have reached the limit of our abilities and that it is time to call in the pros.

  5. #5
    DIY Junior Member Book3's Avatar
    Join Date
    Jan 2009
    Location
    Pittsburgh, Pa.
    Posts
    12

    Default

    Are there any restrictions regarding how far down from the bathtub I can go with a trap? I'm thinking if I remove more of the cast iron drain (vertical section) I could put in a wye and connect to it. That would give me plenty of slope but the tub trap would have to be below the joist.

  6. #6
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,246

    Default

    There are restrictions on how far the trap can extend as well as a long list of other restrictions and requirements. You're not going to get a complete plumbing course on this or any other forum. This forum is intended to help a DIYer with specific problems. Even the very highly qualified professional plumbers here can't tell you everything you need to know and do. If you insist on trying to hack this yourself, I can assure you it will be illegal, probably won't function properly and will never past code inspection. I'm sure you don't plan to pull a permit for this job, but when the time comes you want to sell the house, you will be required to completely redo the job before the house can be sold. I'm sorry if this seems to be tactless and mean spirited, but you don't seem to take our advise too well when presented in a gentler manner.

  7. #7
    Master Plumber nhmaster's Avatar
    Join Date
    Jul 2008
    Location
    S. Maine
    Posts
    2,039

    Default

    I'm gonna give you some advice here that I probably shouldn't but I doubt you're gonna get a permit and probably have no intention of hiring a plumber either so just put another pvc drum trap in it's place.

  8. #8
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,655

    Default drain

    No matter HOW you do it, without revisions, your line to the tub is going to be too long without an intermediate vent. The present installation is already incorrect because of the "S" trap configuration, and a new drum trap, if you could find one, would still be improper. You have a system which was installed by a handyman or DIYer, and now you need someone who KNOWS what he is doing to correct it. As Mr. Goodwrench says, "Pay me now or pay me later." You are at the "pay me later" stage.

  9. #9
    Master Plumber nhmaster's Avatar
    Join Date
    Jul 2008
    Location
    S. Maine
    Posts
    2,039

    Default

    Cheepo Deepot has drum traps right on the shelf. Might as well pick up an AAV and hack it the right way too

  10. #10
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,655

    Default drum traps

    Either the ones here do not have them, or I have missed them because I was not looking for them.

  11. #11
    Master Plumber Redwood's Avatar
    Join Date
    Dec 2007
    Location
    Connecticut
    Posts
    7,463

    Default

    Right next to the bell traps!

  12. #12
    Master Plumber nhmaster's Avatar
    Join Date
    Jul 2008
    Location
    S. Maine
    Posts
    2,039

    Default

    At my branch they are located next to these.
    Attached Images Attached Images  

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •