The disposal of warm fats and grease in a liquid form or waste oil being poured down sinks and drains will give rise to blockages in sewers and drains.
Fats, oils and grease cause major problems to the sewerage system. When they are discharged down kitchen sinks or foul drains they cause sewer blockages and when discharged down rainwater pipes and gullies they cause pollution in local water courses.
There are approximately 200,000 sewer blockages and pollution incidents throughout England and Wales every year, of which up to 75% are caused by fat, oils and grease. Clearing these blockages cost millions of pounds a year. These fat blockages result in sewer flooding, odour problems and the risk of rat infestations near your premises.
Top tips to dispose of fats and oils safely
- Scrape or wipe plates, pans and utensils prior to washing (put solid waste into the rubbish bin).
- Keep oil and grease out of washing up water.
- Do not put cooking oil, fat or grease down the sink.
- Use strainers in sink plug holes and put any collected food debris in the rubbish bin.
- If you do pour fat or oil into the sink you will need to clear it with hot boiling water this will help prevent blockages.