Basic DWV - Video:6 Code Requirements for Trap Arms, Floor Drains and Triple Sinks

[@homeimprovement8119]

Thank you a millions times for your videos. I’m a “home improvement professional” and never been to school for what I do but I’m always looking to do things the right way and the best way and these videos help me with that goal in ways you can’t imagine

[@karlunger9962]

Great videos on sanitary sewer and venting systems. Very helpful in explaining the Canadian plumbing code. Have you ever put something together explaining the requirements and locations for clean-outs? From a code, and perhaps practical, perspective if they differ. I could not find anything in the set of videos. Thanks again.

[@MathematicPlumber]

Unfortunately, I have not done a clean out video.

[@karlunger9962]

@@MathematicPlumber Perhaps one day you will. I have searched and there doesn’t seem to be a comprehensive guide available anywhere on KZbin and nor on any website. If you know of one I’d appreciate a link. Thank you for the quick reply.

[@denvercharlebois699]

Do you think you could ever do a video on manholes or trap seal primers?

[@Boymandudeguy]

Thank you for the series and all of the help. I’m second year and this is helping tremendously to become more familiar with everything. Cheers, Dylan from Calgary

[@scorpio21x]

Really appreciate your explanation of trap arm "total fall"! That one diagram clarified the code instantly.

[@dominiquepierre916]

In plumbing schools ,the teachers are just trade people and they dont teach well. You are the best instructor I have ever seen in my life. I really really love your videos 👏👏👏👍

[@andywong6231]

Me too

[@nadreggid]

Can I put a 4th 'Hand Washing sink upstream of the 3 compartment sink, inline with the continous waste?

[@MathematicPlumber]

Yes you can do this, but you cannot join the drain from the hand wash sink into the continuous waste for the kitchen sink. One of the Basic DWV videos covers Dual Venting, start there. That will work. (I cannot remember which one covers that)

[@SaadKhan-wt5ky]

Hi. What is the maximum drop on a floor drain trap vertically?

[@dr.gaming7381]

I had doubts about 3 compartment sinks before and That was so helpful to understand and to clear all the doubts i had. Thanks 🙏

[@archaicwisdom69]

Is the ty on its back for the middle compartment sink legal? My understanding is that only for venting is the ty allowed to be installed in the position

[@MathematicPlumber]

It sure is. This is a "continuous waste" which is apart of the fixture outlet pipe arrangement. This is not integral to the rest of the drainage operation, just to the operation of the sink. There are no official codes acknowledging this, it is however an accepted practice.

[@mariosifuentes5994]

Would be easier just to multiply the pipe size by 4 to obtain the maximum length of the trap arm?

[@MathematicPlumber]

Given your trap arm is 3" in diameter or less yes.That only works if your grade is ¼" per foot though. If you have a trap arm that is 4" (ie: 4" floor drain) you are permitted to grade it at 1/8" per foot. That will change your math to diameter x 8

[@brianhayden5433]

any idea if this relates to 2018 upc for montana? i been racking my brain around the concept of indirect waste sizing, and vent sizing, also curious to how fixture units applies when its tripple sinks

[@MathematicPlumber]

Unfortunately, I have never studied the UPC. I do know there are some serious differences between the States and Canada though. So I cannot answer your question, wish I could.

[@manojbhatt9853]

Do you offer training for C of Q ???

[@MathematicPlumber]

No, I am not versed in the C of Q exam or process. I teach 1st through 3rd year plumbing which also covers gas fitting. (I follow the Alberta apprenticeship curriculum)

[@dennyblazer1167]

It's not a tee,y .say it with me sanitary tee. Sanitary tee. Not tee,y.

[@MathematicPlumber]

Same thing bud

[@Chrominance87]

LOL!!