Basic DWV - Video:3 Basic Drainage Sizing (Part:1)

[@pingliu7639]

wonderful video ,useful for me

[@jacksonmurula9380]

You're the real teacher, I can't compare you with other plumbing teacher

[@duckshop6474]

You are a phenomenal teacher, greatly appreciate the clear explanations. Going through level 2 currently and our textbook has a ton mistakes and is full of filler so this has helped me massively! Thank you!

[@zeyuli8011]

good teacher

[@AJFXTRADINGFLOOR]

Best Teacher

[@safa111]

It helps me a lot when i am going to 2nd level plumbing school next month

[@urbhatti]

All your videos very knowledgeable thanks for videos

[@denvercharlebois699]

Are you able to have 3 main stacks in a 4 story apartment?

[@MathematicPlumber]

The concept of the main stack is only a trade term, it just refers to one stack that extends all the way through the roof no less than 3" in size. It is not directly defined in the code. So technically with your scenario, only one of the stacks would be the 'main stack', all the rest would be regular Soil or Waste (SOW) stacks. You could install 50 of them if you felt like it, but you might get slapped by someone as it's a waste of pipe.

[@denvercharlebois699]

Okay so what your saying is I could install three stacks that go threw the roof ?

[@MathematicPlumber]

@@denvercharlebois699 Sure can

[@nathanhorstemeier4490]

Did they remove 2.5.8.4 (5) from the code book? I can't seem to find it.

[@MathematicPlumber]

It's definitely there. Possibly the next page.