![1067837268_o.jpg](https://img.auctiva.com/imgdata/6/6/1/2/4/8/webimg/1067837268_o.jpg)
This first floor sink was very slow at draining so I removed the waste a bend part and sure enough it was clogged full of black gunge.
Now I have put it back after rinsing it out bit the sink gurgles as the last bit of water drains.
It didn’t do this before.
Help please!