plumbing - Is this horizontal drain pipe under kitchen sink a

My double kitchen sink drains into a 2” white plastic DWV pipe that traverses approximately 4-5’ of distance without any slope at all. I used a level to confirm my visual observation: there is inde

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How To Plumb a Bathroom (with multiple plumbing diagrams) - Hammerpedia

How To Plumb a Bathroom (with multiple plumbing diagrams) - Hammerpedia

Replace a trap, and add a cleanout - Fine Homebuilding

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Our Plumbing Vent Diagrams & Tips Can Help You Plan Your Remodel

I want to install a garbage disposal. Is there any reason why this current setup is so complicated? The pipe horizontal drainage pipe is slightly slopes upwards too. : r/Plumbing

FAQ: Can Water from an Upper Apartment Backup into Lower Floor Apartment Drain?

Home inspection find of the week: horizontal P-trap. Yeah the bathroom may smell like sewage but at least the trap won't clog! This Easter egg was in Leander. : r/Austin

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Kitchen Double-head Sink Under The Water Pipe Dish Basin Sink Double Screw Drain Pipe Connection Hose Extension Fitting - AliExpress