![At a loss with this , have I done something wrong sink doesn't drain every now and then , I undo the u bend drain all the water out that way and At a loss with this , have I done something wrong sink doesn't drain every now and then , I undo the u bend drain all the water out that way and](https://preview.redd.it/at-a-loss-with-this-have-i-done-something-wrong-sink-doesnt-v0-0wjqawbrsmu91.jpg?auto=webp&s=368e09b9682b09d62d8a6abd7cd9986b9dca794f)
At a loss with this , have I done something wrong sink doesn't drain every now and then , I undo the u bend drain all the water out that way and
![Sink won't drain. Removed U-bend, not clogged. Rotated right-angle bend upside down and able to pour water down. Live in a flat. Bathroom all works fine. Haven't tried dishwasher / clothes washer Sink won't drain. Removed U-bend, not clogged. Rotated right-angle bend upside down and able to pour water down. Live in a flat. Bathroom all works fine. Haven't tried dishwasher / clothes washer](https://i.redd.it/7ry8bavnias21.jpg)
Sink won't drain. Removed U-bend, not clogged. Rotated right-angle bend upside down and able to pour water down. Live in a flat. Bathroom all works fine. Haven't tried dishwasher / clothes washer
![Ubend Pipe Under A Sink Or Hand Basin Stock Photo - Download Image Now - Sink, 2015, Drainage - iStock Ubend Pipe Under A Sink Or Hand Basin Stock Photo - Download Image Now - Sink, 2015, Drainage - iStock](https://media.istockphoto.com/id/485086234/photo/u-bend-pipe-under-a-sink-or-hand-basin.jpg?s=1024x1024&w=is&k=20&c=t_OMZE6ftL3lRhILclivyXVuTd-U-Ikk4MRfFVlSx_g=)
Ubend Pipe Under A Sink Or Hand Basin Stock Photo - Download Image Now - Sink, 2015, Drainage - iStock
![U Bend Pipe Under Sink, Stock Photo, Picture And Rights Managed Image. Pic. TRI-10436048 | agefotostock U Bend Pipe Under Sink, Stock Photo, Picture And Rights Managed Image. Pic. TRI-10436048 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/9a66ada005e2831757f0b6476f35d47b/tri-10436048.jpg)