You are the one that had to take the test, and you are the one that studied hard. All I did was translate Code.

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!

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👍

Thank you for the kind words. Just relaying the information.

Thanks!

Thank you for the kind words!

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.

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)

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").

I did one on here. kzfaq.info/get/bejne/ot93kptmqMfPhJc.html Please look here.

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).

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.

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.

According to the UPC 2" will suffice. However, IPC does require a 3" drain.

Thank you Ben

Most welcome.

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.

Email me at gorhambm@outlook.com and we'll discuss further. I'd be happy to help!

I hope all is well and the help I provided so far has been a value to you.

@@BGsPlumbingClass It has...!! Thankyou!!

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).

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.

I will definitely do that! Sorry for such the late response.

It is titled Example of Cross Sectional Areas in DWV Systems. Take a look at it and hopefully it helps out.

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!

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 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!

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.

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.

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

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

Please contact me at gorhambm@outlook.com for more information

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).