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W Hi MASTERPLUMB777! Your last note could not be more cryptic. Which vent on which sink? The existing sink is vented 1.5" feet to the right. And the new utility sink is being vented with a new pipe added after its p-trap.

Great idea! Could one cover the one on the right with fernco flex cap , or it has to be a threaded plug?

Jeff! Thank you for the explanation - yes, this is logical.

Jeff, this is great! I am curious at to why the tee on back for the washer vent would be wrong in my instance? Thanks!

Hi Jeff, Thanks a million for your input! I posted a new drawing reflecting your and MASTERPLUMB777's suggestions. My code questions are in red on the chart. The plan now is to drain washer into utility sink. All pipes in green are new. I decided to replace the existing sink waste hook up...

Thank you, Jeff. Clarification on my specs: (I was posting late at night and did not notice 1/2 " mistake) -- the existing vent pipes and the old laundry inlet are all 1 1/2" not 1/2". Thanks again!

Greetings, I hope everyone is well today! Please refer to the image attached. I would like to use an old 1-1/2" laundry floor inlet for shower and upgrade laundry to utilize a 2" floor hub to which only one sink was originally hooked up. The distance from the new laundry trap to the vent at the...

Thank you, Terry! My toilet supply will be no more than 2 ft.

Hello! I hope everyone is have a nice day! I am re-piping copper with PEX. My sink and toilet are right next to one another. Instead of "tee-ing" the cold water pipe for the toilet behind the wall I thought it could be more efficient to use a dual stop valve and split at the sink. Is this...

The hood duct needs to run through kitchen ceiling and vent out in a wall (not roof). My joists are 2 x 8 with the ceiling drywall dating back to the 1950s. What is the max duct diameter I can install in my joists space? Is there any clearance (air gap) consideration between the pipe and joists...

Thanks again, Terry!

Thank you, Reach4!

Thank you - Terry! Yes the house is old and the pipe is 1.5". But ideally, where would you put the cleanout, where the new pipe joins the old vertical waste to soil? Thanks again!

Thank you - plumber69 !

Residential project, all standard pipe sizes. Need to re-locate kitchen sink 17 feet away from its original location. Planning to use AAV instead of extending a vent pipe. To the best of my knowledge the slope should be no less than 1/4" per foot. Is there a limit on the max angle? Any other...