venting

  1. PhilT

    Feedback on venting

    I am currently designing a DWV system for a small cabin and, since I'm new to this, I would like feedback on the approach. I'm in the boonies so no inspection is required but still want to make sure I follow best practices. I made a mockup of the bathroom group (shower, WC and lav) with my...
  2. MAYOR

    Basement Plumbing Venting.

    Hello, Basement bathroom setup under concrete. Please see sketch. Will the 2" vanity sink wet vent be ok to vent toilet and shower as shown. Thank you Mayor Please see sketch.
  3. Bling

    Bathroom addition help

    Hello, I am new to the forum and was hoping for some advice with drains for a bathroom addition in a half story of a cape. I am located in MA which has its own plumbing code (but is similar to UPC). Some of the challenging conditions are: 1. the ceiling is sloped (with a clipped gable) which...
  4. MarktheRed

    Venting Tie-In - Dumb Question

    Hi Experts. Doing a remodel in my basement and have a question as to the best tie-in a vent from a new laundry area to the existing vent stack. This horizontal vent will ONLY be for venting and I have some concerns about using a double wye as it will create a trap for the sewer gases in the...
  5. DeRun

    Need Help! Adding Shower to Basement Half - Drain and venting

    Hi. Noobie here and thanks for the add! I'm a DIYer and want to add a shower to the half bath in basement. Not sure how to add drain line and vent. Please see pic attached. Red arrows show toilet and sink drain direction under slab. The blue circle shows where the copper vent meets slab...
  6. Jay S

    Planning slab penetrations for a basement bathroom

    I'm planning new construction, my questions involve a basement bathroom w/ a tub, shower, wc & vanity as shown. First 2 general code / best practices questions which reveal my level of experience... 1) Since 3" or larger pipes are called for under slabs, does that mean traps under basement...
  7. Vin_ny

    Plumbing Vent for Toilet

    Hello, I was wondering if this fitting (attached) 3" x 3" x 2" - DWV 90-Degree Hub x Hub Elbow with Lowheel Inlet would work for the 2"inlet to be piped and used for venting outside of the home for a toilet or would it pose an issue? Appreciate the help.
  8. Girafdaniels

    Venting/BackDraft on Rheem Water Heater?

    My carbon monoxide detector went off recently, so I had the gas company out to test levels at our only gas appliances -- 38000 BTU Rheem* water heater and 80% efficient 88000 BTU furnace sharing flue venting. The gas company measured 45 ppm CO at the top of the unit when it was kicked on (and...
  9. Ds0440

    Bathroom Remodel Wet Vent Advice

    Hello! This is my first post on this forum but have been using it as a resource for various projects. I am hoping to get a little advice on my DWV rework for a bathroom remodel. I plan to get this work inspected so pointers would be much appreciated. Please see the attached proposed plans along...
  10. Judemenke

    100 year old house sewer pipe advice.

    My wife and I just purchased a 100 year old old I’ve been renting for 10 years. 31k 4 bedroom 2 bath. A medium-large house in a small town in Iowa 30 miles east of Sioux City Iowa. In recent years the smell of gas has been getting stronger. When you flush the toilet on the upper level the...
  11. LetMeVent

    Help Venting Freestanding Tub

    We are currently undergoing a master bath remodel, and want to confirm my plan for venting the new freestanding tub. The previous bathroom configuration had a corner whirlpool tub framed to abut a single vanity along each side, and the tub drain was wet vented to the lav in the vanity along the...
  12. Frankiek3

    Plan for Basement Bathroom and Expansion for Future 2nd Floor Bathroom

    IPC 2015, All PVC Existing 1st floor full bathroom, adding a basement bathroom, and plans on a future 2nd floor full bathroom. The basement septic pump I'm going with requires a 2" waste and a 2" vent pipe. The plan is to tie-in the vent with a 2x2x2 sanitary tee above the bathroom sink flood...
  13. Kamil

    Toilet Venting

    Hello, I have a question regarding two toilets that are on the same horizontal drain pipe. The toilets are back to back in two separate bathrooms. As you can see on the picture toilet#2 is vented but I am not sure if toilet #1 needs a vent as well and if it does how would one do it while...
  14. TheOverThinker

    What separation is required between a bath vent & kitchen vent. Code question.

    Hi there; I have a planned remodel, with a bathroom and kitchen in close proximity, each of which will need a vent. This is in California, so the California Mechanical Code (IAMPO UMC based) and California Residential Code (CRC) apply, along with the local energy code. Question 1: I know that...
  15. Oscarmeyer28

    Bathroom group

    Can you use a 2" vent for a bathroom group ? Toilet,shower, sink. Looking to wet vent it. Tub ties into 3" trunk, sink ties into 3" trunk, shower ties into 3" trunk then a 2" vent on the 3" trunk.
  16. GoHawks

    Wet venting a shower

    I am adding a bathroom to my upstairs and want to make sure my venting is correct. I will be tying my sinks, toilet, and shower together. My shower venting is a little weird and want to make sure it works. The shower is in the middle of the room and because of that I need to run about 4 feet...
  17. farmerisland

    Fixing improper venting, old house

    Hello, This is an update/new question from my last post. My home has old all copper DWV from 1960 and earlier, with even older cast iron at basement level-down, that I'm replacing with PVC. Plumbing noise isn't an issue; I really don't want to do expensive cast. The current copper has pinholing...
  18. Oswald Tay

    Help with wet vent with toilet and shower!

    Hi, I am relatively new to plumbing, and I am simply wondering it the design in the picture below is acceptable in terms of venting and wet venting? I am renovating an old basement half bathroom. The drain for the sink is already taken care of, but I am just not sure about the drainage and...
  19. farmerisland

    Copper waste line flat, venting lacking, and so much more

    Hey guys. I need to share a little back story to give proper context of my issue with some upstairs very old plumbing. I live in an old farmhouse that was originally Mennonite-built in 1890. There was no indoor plumbing initially but the main floor bath was put in by my grandparents at some...
  20. Sampellegreeno

    Bad drain without a vent

    Hello! Thank you in advance for any insight. I recently purchased a restaurant that is in a historic 100+ year old building. All of the floor drains work fine, except the main kitchen drain. I was told it was installed incorrectly years and years ago without a vent. Any small amount of water...
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