
Kitchen sink blockages: grease, fat and food scraps
Why kitchen sinks block, where the grease actually sits, what works and what does not, and how a Wilco plumber clears a greasy line and keeps it clear.
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Key takeaways
- Fat sets as it cools and builds up in layers on the pipe wall, often well past the trap under the sink.
- Slow draining, gurgling, a sour smell and dishwasher water backing into the sink are the early signs.
- A drain cable punches a hole through the fat; hydro jetting scours it off the whole pipe wall, which is why jetted lines stay clear longer.
- Sydney Water says excess cooking oil goes in a sealed container in the bin, and a sink strainer keeps food scraps out of the pipes.
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