How can a drain pipe be sloped (say 1/4' per foot) if it is attached to a perfectly vertically plumb pipe by a 90 degree fitting? By geometry, this doesn't work. Where
![External Waste Pipe leak for the kitchen sink. Opinions on possible solution / tips / advice. | DIYnot Forums External Waste Pipe leak for the kitchen sink. Opinions on possible solution / tips / advice. | DIYnot Forums](https://i.imgur.com/k7FUD20.jpg)
External Waste Pipe leak for the kitchen sink. Opinions on possible solution / tips / advice. | DIYnot Forums
![kitchen sink - Is there any way to get around a high waste outlet pipe? - Home Improvement Stack Exchange kitchen sink - Is there any way to get around a high waste outlet pipe? - Home Improvement Stack Exchange](https://i.stack.imgur.com/1iTEi.jpg)
kitchen sink - Is there any way to get around a high waste outlet pipe? - Home Improvement Stack Exchange
How can a drain pipe be sloped (say 1/4' per foot) if it is attached to a perfectly vertically plumb pipe by a 90 degree fitting? By geometry, this doesn't work. Where
![External Waste Pipe leak for the kitchen sink. Opinions on possible solution / tips / advice. | DIYnot Forums External Waste Pipe leak for the kitchen sink. Opinions on possible solution / tips / advice. | DIYnot Forums](https://i.imgur.com/GBtx4Yd.jpg)