Chpt 7 Sizing Video
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- čas přidán 21. 07. 2020
- This is a description on the proper method of sizing a waste and vent system according to the 2018 Uniform Plumbing Code. I hope this is an informative video for you and please leave a comment if you'd like.
Sr, I just passed my test in California and now I can say officially that I’m a journeyman plumber and I want to thank you a lot for these amazing videos, they helped me a lot with my test.
You are the one that had to take the test, and you are the one that studied hard. All I did was translate Code.
Thought I would let you know that your videos were super helpful and a huge part in me passing my journeyman exam in Washington state recently. Thank you.
Fantastic! I am so happy for you! It was you, though, not me. I just read the code and explained it. You took the time and dedication to study!
Great Stuff!
Thanks!
Best profesor i have seen on youtube ,definetely
Thank you for the kind words. Just relaying the information.
Beautiful video
Thank you for the kind words!
Great video, very easy to learned I learn a lot from you , but you forget to mention aggregate vent and sump pump which were important in the vent pipe sizing. I suggest you make a video just for those to be thorough.
I've done a cross sectional vent video in the past. A sump would be a great addition, though! I'll see what I can do👍
what measuring tool do you used to draw it in such a way to make the drawing 3-d.
The key to isometric drawing is the 30 degree angle. With that being said, a regular 30-60-90 would suit just fine. However if you are wondering about the template I use, it is the Rapidesign isometric template (R-43)
Are these valid for high rises or multi story buildings? Because I’ve usually used a 4 inch for WC. Could u explain this if it’s mandatory? All others match my drawings except WC. And we keep separate stacks for soil n waste
Although the code minimum requirement is 3" for a WC, 4" is used often- especially in high rise or multi story situations. 4" is required by code when there are more than 3 water closets horizontally or 4 vertically. 4" will allow for a longer distance without the need for venting (10' as opposed to 6' for 3").
Do you cover the cross sectional upsizing of the vents in any of your videos?
I did one on here. czcams.com/video/lyG_85CakTc/video.html Please look here.
I'm having trouble understanding when it says 6 unit traps in the code book, and can you go into detail explaining it please, would be insightful
Brian I replied to another of your comments asking for your email. I'd be happy to communicate with you further off line. Looking forward to hearing from you.
It's hard to find good teaching on youtube like this! Thank you so much for the easy understanding and efficient teaching! I have one quick question here, if a vent pipe section which connect to the water heater directly, since the water heater do not count any fixture unit, so this vent section goes minimum 1-1/4'', am I correct? Thank you in advanced!
The exhaust from a natural gas water heater would fall in the parameters of Chapter 5 and not have anything to do with the water that passes through the tank, and the minimum size of an exhaust is 3 inches. This depends on the BTU/Hr. I hope this answered your question to where it makes sense, if not please let me know.
Hey, I am having a challenging time understanding cross-sectionals. Could you go into detail about that.
Absolutely! Just finished reviewing it about twenty minutes ago with my class!!! Let me do a quick video review for you and I will post it in a few minutes (by 9p pacific time).
I’m still having trouble understanding some stuff. I was wondering if you could go over the drawing 4 public use in the study guide. Just confusing myself on pipe sizes inches on the drain and vents. Part that is confusing me is the pipe goes from a 3in to a 4in drain. Then 1 1/2in goes to 2in vent.
Contact me at gorhambm@outlook.com and we can go over some of your concerns.
I have the same question, did you get an answer?
I am going to be doing an updated video on this, as there have been a few major code changes that apply to sizing drainage systems.
I'm just curious, one thing I noticed when you sized the laundry room, you ran it in 2"; I take it that being mandatory to discharge from a 2" washerbox trap, into a 3" drain pipe, is a colorado code?
Ive seen some cowboy installs doing remodels, and surprised they functioned, but I imagine something happened with suds backup to warrant the 3" sizing for a washer box.
So plumbing everywhere else, 2" is acceptable?
Thank you for the lesson as always.
According to the UPC 2" will suffice. However, IPC does require a 3" drain.
Thank you Ben
Most welcome.
Can you please explain Fitting sizes..? How would you use them and calculate them?
That is a question that would involve a long answer. I think it would be best explained through a video. I will endeavor to explain within the week. Short answer would be to check the code (UPC 2018 section 706.0) for information on exactly what type of fitting is allowed in each scenario. Sizes are determined by the fixture unit totals and that is mentioned in this video.
Do you no have a video the vent cross section
It is titled Example of Cross Sectional Areas in DWV Systems. Take a look at it and hopefully it helps out.
Do you have any diagrams for waste and vent with sump pumps on it ?
I will be adding one of those videos this upcoming Fall semester.
Alright no biggie I’m about to take my journeyman test but the waste sizing is what I was struggling with more than waters but there diagrams are pretty detailed with sumps and upsizing the drain because of cross sectional area and all that
@@zacharydavis7186
The Journey-level exam will likely not deal in cross sectional area demands, as it is not a cut and dry code requirement as far as which vent is to be sized larger. That would be subject to design preference. Also, the sump and vent off the sump would likely not be a part of the testing because then each exam would have to have a sump- there are multiple exams provided to avoid cheating.
Hey I understand all this by how you have it drawn it out in 3D but how on the test you have to write it out in 2D.
I hope all is well and the help I provided so far has been a value to you.
@@BGsPlumbingClass It has...!! Thankyou!!
At 22:23 you're sizing the venting units and you say that no WC is present, but yet there is. Why are you not adding it?
If you take a look at the section of piping that I was referring to, it was just prior to the water closet being tied in, so 1 1/2" is appropriate- but not realistic (2" pipe more than likely if cast iron due to cost and availability). Great observation!
BG, could you please size a public two or three story building.
I will definitely do that! Sorry for such the late response.
What is the protractor u have called or where can I get one
I get that question a lot. It is by Rapidesign and is the Isometric Template. You can get it on Amazon. I've had it since my apprentice days back in 19... something or other.
@@BGsPlumbingClass thank u I just got one!
Love that template!
hey sir can u pls pls make a video on stack sizing and and how to vent a 4 story
and then a 10 story kind of confused on how to vent them
I will put that on my list of videos to do next. I just completed my Spring Semester and I am not nearly as busy so I should be able to push out a few more videos. Never expected to do videos at all. I guess Covid did have something positive come from it (always look on the bright side of life- Monty Python).
When is your next class? I’d like to study plumbing. Thanks again
Email me at gorhambm@outlook.com and we'll discuss further. I'd be happy to help!
can you please post a video of sizing DWV with a sump involved...
would be cool if you had a website and you could download some sizing PDF's to practice on and have answer sheets to them. i would pay a few bucks a download.
I have been pretty busy lately, and I have been contemplating that very idea. I'm in the middle of moving from California to Tennessee right now.
I hope your move went well. I have the very same question. Do you have a video or can do one explaining DFUs with an ejector or sump pump?
@@cmsgtluna I am in the process of developing an online class with quizzes and zoom meetings. Would that something you would be interested in enrolling in?
I believe you made this a little too simple. As an introduction its great but for passing a test it doesnt include a sump and therefore does not have enough coverage of pertinent code.
At the time of this video, the intention was to teach according to the state journeyman exam where I taught the class. These videos were a result of having to put the classes online during covid. You are correct in your comment that more could be presented. Based on the classroom setting this was intended for, throwing more into the mix would have been counterproductive. I appreciate the comments, and I may add a specific presentation on sumps in the near future.
How do I inrolll ?
Please contact me at gorhambm@outlook.com for more information
for the vent piping calculations you are doing in 26:58 do you ever figure out cross-sectional numbers? It would be 1.77
Great question! Cross sectional area is a definite concern. This example is not reflective of a whole system but only a portion of a system. Even if this were a complete system, a vent are of (3x) 1 1/2" vents and (2x) 2" vents would be more than adequate to cover the area of the 3" building drain. The total cross sectional area for the venting is roughly 11.5 sq inches and the cross sectional area for the 3" drain line is 7.065 sq inches.
Dear can you make a video in systematic way like first you complete your all drainage parts then water supply.
I am sorry I did not reply until just now. I've been sick for the last month. If I understand you correctly, you'd like to have me go through a building design for all systems, figuring out the sizes and the material lists for each system?
@@BGsPlumbingClass hoping for your good health, yes you are correct, take an example of any building, firstly u do drainage calculation including all, then water supply, then pump selection etc.. In order any body can easily understand, hopi g positive response from u..
@@bari5268 It is a wonderful idea and I will work to do this! I will design a mock building and then calculate the sizing for it- with design and drawings.
@@BGsPlumbingClass thanx sir,as watching ur videos helping us .and you can attach the excel sheet or pics from where you are taking the ssumption like ipc or upc .it will really work
Hey BG. Do you or do know someone that I can video chat with someone that can teach me how to size waste lines along with vents more so? Let me know what price?
Price? God no!!! I tell ya what, I will figure out something for you and anyone else that might want to join in. But only if you promise to keep the money you were willing to pay for tools (Milwaukee preferably).
@@BGsPlumbingClass Hi there. have you is it still possible to get tutoring from you via online chat?
What is your email, I'll send you a Zoom link so we can talk.
@@BGsPlumbingClass I can't seem to give you my email address I reply on here but my reply will does not show up afterwards.
@@realdeal8078 Send me an email to gorhambm@outlook.com
you not count bathroom group
That is correct. Until the State of California changes their Journey-level exam to reflect sizing via the bathroom group quantification, I am obligated to my students to ensure they have the needed information to successfully pass the exam. You do, however bring up an interesting topic. I will try to do a quick video on sizing using Appendix C 303.3 (based on approval of an engineered method).