Wellington Waste Water is warning people not to put cooking fat down their kitchen sinks, or treat the loo like a waste bin, after a blockage contaminated the harbour with fat and sewage.
What happens is this: people tip fat down the sink, which mixes with things like wet wipes, and sanitary products that get flushed down the toilet together forming a blockage. In central Wellington there are about two blockages a month.
Wellington Water's Alex van Paassen says the actions of individuals really make a difference.