![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://preview.redd.it/7ry8bavnias21.jpg?auto=webp&s=b289547a95953b50386fc530f50e17a11c7d3299)
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
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