venting

  1. TexasHighlander

    Confused on 2nd floor freestanding tub drainage

    I’m installing a new 2nd floor bathroom with a freestanding tub. (There is a separate shower and toilet with its own drain.). The drain we can use is the 1 1/2” vent pipe coming from the 1st floor tub/shower combo. This exits to the roof on one end, a septic on the other. 12” wood floor but I...
  2. Stevenson stevo stevers

    Laundry p trap venting

    I would like the p trap to be in the wall instead of outside. I dont have enough space to place a dryer next to the washer with the exterior p trap. I currently have 1 1/2" pipe for the drain and p trap and I was told 2" is required? I'm in california. My issue is that there is not enough...
  3. JOSEPH SMOOT

    B VENT / Draft Hood / Flue question

    Hey all, New homeowner here, been remodeling the whole house. Bought a Rheem 50 gal platinum plus gas (natural venting, only powered flue flap no fan) on clearance. Looked in the manual and it calls for B vent. Ran it out the house and up the side above the roof (per local code). Issue I have...
  4. landsbergfan

    How to remodel basement laundry after moving washer/dryer

    Hello all. I have used this site as a great resource and found enough info to where I think I know the answer, but want to make a unique thread to be sure. Thanks in advance for the help! I am moving my washer and dryer for a basement remodel with the goal putting them side by side and...
  5. Cadobe

    Venting Navien Combi for high temperature design

    From the manual on page 44: "In high temperature applications, the exhaust temperature can exceed 149°F (65°C). In that case, you must use Schedule 40 or 80 CPVC or Approved Polypropylene in the USA or Type BH Special Gas Vent Class IIB (CPVC) or Class IC (Polypropylene) that conforms to...
  6. Arvydas

    DWV in home on slab

    I recently bought a house built with all of the plumbing in the slab and did a whole remodel. It was a bank owned property built in the 50s, and needless to say I ran into quite a few head scratchers. As far as plumbing, I replaced all fixtures and traps. In doing so, I noticed that the only...
  7. k75s57

    Occasional Odor From Bathroom Sink

    • Occasional odor coming from MBR sink. Not repeatable on demand. • All sinks, toilets, shower, tubs drain easily. No gurgling or bubbling. • Using a bright flashlight on the sink trap and looking down the sink trap I see the following: • trap always has water. • trap water line has slight...
  8. Layla-Gail O'Brien

    Because I just have to do things oddly...

    *Storytime* :D For my family; I manage a 38-acre, private, saltwater lake property on the Intercoast of Texas with fishing & camping for a membership fee. Except, people don't want to come camping because we don't have a proper 'Bath House' just an accessible 1/2-bath restroom. I looked into...
  9. MrDankBars

    Will this vent connection siphon my p trap?

    Hi all, I'm installing a full bath where a kitchen used to be and am trying to use some existing plumbing. There is a vent connection that will be downstream and below the p trap of my new sink. I am wondering if this vent connection will still siphon my new sink p trap if I add a new vent...
  10. John McGowen

    DWV vent tee location

    I have been reading about plumbing codes and methods on this site for many years and I learned a lot but I still don't know everything so I must ask a question. I have removed all the cast iron DWV parts so everything will be PVC. I am also installing a full bathroom and seperate floor drain...
  11. Just Trying My Best

    Bathroom venting question

    I'm replumbing an existing basement bathroom that doesn't have vents. Does this diagram look right? 1. Can I add a shower vent to the end of the 3" main horizontal waste line just beyond where the 2" shower line meets it? Is this to code? 2. If the sink is vented, do I even need to add a...
  12. Chad Sethman

    Switching from electric tank to gas tankless questions.

    Hi there, I have noticed some post that have provided me with good information but I thought I would make my own post to more specifically address my questions. I have an outdated electric tank water heater and I am considering switching to a super high efficiency (condensing) natural gas...
  13. NCBubby

    Wet Venting for Dummies

    Holy Cow today has been a total head scratcher! Props to everything that you professional (and amateur) plumbers have to go thru. I have racked my brain all day today trying to figure out this wet vent and I have to admit defeat. Any advice y’all can give to this newbie will be greatly...
  14. Ipeakedinhighschool

    How does this DWV bathroom setup look? Awesome?

    Will this get the job done? I tried to keep it simple since I am simple. let me know if I botched something up. Thanks!
  15. Mitzy

    Venting for new bathroom

    I am putting in a new laundry/bath. It has a shower, sink, toilet, washer. It is right next to my other bath, which has a sink, shower, and toilet. The original bath has a 3" vent in the roof. By code, will I be able to tie in my new laundry/bath to the 3" vent and save a hole in the roof? The...
  16. robinsi

    Bathroom rough in : joist under wall

    Hi, I’m new here so I hope my first post makes sense! I’m remodeling my cottage bathroom. There is a floor joist right under and parallel to the wall where the shower, toilet and sink are. So the drains and vents cannot go trough the bottom plate of the wall like they usually do :( To solve that...
  17. ngmtl

    Venting Problems - How to Diagnose Positive vs. Negative Pressure

    From what I understand, it's generally safe to say that gurgling from a drain signals a venting issue. I'm looking for ideas to help diagnose which of two possibilities is in play. Feel free to suggest other possibilities that I have not considered. Possibility 1 - Negative pressure but with...
  18. tippsand

    How do I vent this basement bathroom?

    Hi - How do I vent this bathroom that was roughed in before the house was completed? Same bathroom in all pix, just showing what the room looks like now (we had to cover the studs since the inspector decided the basement was "finished" and he wanted it fire rated). 2" from lav and tub; the...
  19. skylarsutton

    Washing Machine Vent Distances

    Hello - thanks in advance for any replies/advice. I am doing a laundry room addition on our house. My plan is to use one of those modern washing machine boxes with a standpipe+trap+vent on an interior wall. I found the UBC code sections about standpipe heights / trap distances and everything...
  20. Kyle Marsden

    Tub/Shower to Shower only: trap arm and venting

    Hello all, wonderful site have learned a lot over the last couple days. I typically do tile work but have been tasked with some plumbing work on my current project (rural job in Missouri, owner is NOT pulling permits) Pictures attached are the re-work of a second floor drain and vent. Existing...
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