Improper disposal of fat, oil, and grease (FOG) is one of the most common causes of drainage problems at Lanes.
Blockages in pipes and sewer systems can cause significant disruptions and escalating costs for homes and businesses nationwide. Most commonly, we find that FOG is the culprit.
FOG can clog up sinks, drains, and sewers, increasing the risk of flooding in the local area. Oily cooking waste entering rainwater pipes and gullies can pollute streams and rivers.
FOG also causes fatbergs. Fatbergs are the equivalent of icebergs found down the sewer, consisting of a congealed, solid mass of fats, oils, and grease (FOG).
Find out about the infamous Whitechapel fatberg of 2017, which weighed 130 tonnes, in our article, Fatbergs: The Data Behind The Growing Phenomenon.
Safe disposal of FOGs and better food preparation habits can avoid many of the current difficulties related to FOGs.
By making a few simple changes to your daily habits, you could help to tackle a significant environmental nuisance and support your local community, while reducing your chances of dealing with damaging and costly drainage problems on your premises. It’s unquestionably a win-win, and it’s easy to achieve.
The current prevalence of FOG-related drainage problems comes even though most people generally understand that tipping fat, oil and food waste down the sink isn’t a good idea.
The fact that these habits continue to persist anyway suggests that the general public is not as aware as they should be of the serious consequences that can arise.
You can learn more about the UK’s domestic drainage habits in our article, Drainage Habits Survey Reveals UK’s Habits and Attitudes On Drainage Usage.
Here are a few eye-opening facts to demonstrate why this problem needs to be taken seriously:
What’s more, it’s worth bearing in mind that disposing of FOG down the sink is illegal, according to several pieces of legislation:
As such, washing fat down the sink needs to be seen as more than just an individual issue— – it can cause problems for an entire local community, and put food industry businesses at risk of legal issues that could be financially and reputationally harmful.
Fat, oil, and grease should never be disposed of down your drains. However, many solutions can help you dispose of FOG safely. In liquid form, these substances should be poured into a container to cool and congeal and then disposed of in the bin. The same applies to food scraps or other substances that can cause blockages.
No. Although substances like oil, fat, and grease flow easily in their hot, liquid form, they quickly cool and solidify when they come into contact with colder water inside the plumbing and sewage system. This ultimately leads to the development of blockages and fatbergs. Whether this means minor blockages in your pipes, drains or larger ones in the sewer system, these outcomes are always best avoided.
You should not wash solids down your sink, even if they are only crumbs or scraps. While cleaning a few food scrapings down the plughole may seem harmless, they can quickly accumulate in drains—particularly in U-bends—and clump together with fat deposits already in the pipes to create stubborn blockages.
Food macerators used to be common in commercial settings, but they are now illegal in commercial kitchens. Food macerators grind up food scraps to allow them to be washed into the drainage system, but it is now understood that they place an extra load on sewerage systems that were not designed to handle food waste. While they are not illegal in private settings, it is best to avoid them.
Sometimes, but boiling water does not dissolve fat, oil or grease. Therefore, this is not a sustainable solution to a blockage. Pouring boiling water down the plughole to break down an obstacle will work on minor blockages, but not with serious FOG blockages that have solidified over a long period.
Moreover, if you have a PVC-based piping system, there’s a risk that the high temperatures do more harm to the pipes than to the blockage. There is also a risk of washing FOG further down the drainage system, where they can solidify into fatbergs and cause larger blockages. If you are in doubt about a blockage, the safest course of action is to call for professional help.
No. Catering companies used to be able to collect waste cooking oil and sell it as an ingredient for animal feed, but this is now illegal. More information can be found on the Food Standards Agency’s website. It is also illegal to dispose of liquid waste at landfill, and this includes FOG that has cooled and solidified.
Commercial businesses need to make themselves aware of the latest rules and recycling methods – such as in biodiesel production – to ensure they are dealing with the FOG the right way.
Despite the seriousness of the problems improper FOG disposal can cause, getting it right is actually a fairly simple process – it’s all about learning the best approach, and making a few easy changes to kitchen habits to make sure that oil and fat never end up anywhere they don’t belong.
Remove waste oil manually, and transfer it to a designated container to cool and congeal. You can buy devices for private kitchens that will enable you to safely collect oil to dispose of it in your bin. Larger quantities of waste oil from commercial premises – for example, the liquid left over in pans and trays after cooking – should also be collected and, ideally, sent off to an Environment Agency-licensed waste oil collector. In many cases, the oil can be recycled for use in biodiesel production, or for incineration to produce electricity.
Make use of tools like sink strainers, grease traps and enzyme dosing systems. Special grease traps can be fitted in the drainpipes to separate FOG from the rest of the wastewater, to be removed by a licensed waste oil collector at regular intervals; additionally, special enzyme dosing systems can be purchased to break down residues that are already in the drains where necessary.
Get everyone on board with proper FOG disposal methods. Any efforts to reduce your risk of oily drain blockages are going to be undermined if you’re the only person committed to them. For households, that means getting everyone in the home on board with the new rules for washing up. For employers, it means providing specific best practice guides and training for all members of staff, explaining why positive FOG practices are so important, and the potential costs and risks to the business of continuing to get it wrong.
Dispose of food scraps in the bin. This is perhaps the easiest change to make to prevent FOG blockages. Make sure that plates, pans and utensils are scraped clean of solid food waste prior to washing, and be disciplined about brushing even the smallest scraps into the bin. Make sure to wipe down the items with kitchen roll to mop up any excess oil and grease before running them under the tap.
Call in the experts when you need help. Responsible waste disposal can sometimes depend on external assistance to get your infrastructure right, or to deal with problems that already exist. Premises looking to fit a grease trap may want to consult an environmental health officer for advice on optimal placement, while those whose systems are already clogged by FOG may need to call in drainage professionals to clear the existing issues before making a fresh start with new habits.
As the UK’s biggest privately owned specialist drainage contractor, Lanes can deliver an unparalleled service when it comes to removing FOG from drains and sewers. We use state-of-the-art jetting technology to dislodge FOG residues and break them down into removable chunks, which we will then transport to registered waste disposal sites. We can also take responsibility for the completion of the associated legal documentation.
Our level of expertise is such that we’re even equipped to deal with excavating huge fatbergs from the UK’s sewer system – in fact, we worked with Thames Water in 2017 to remove the infamous Whitechapel fatberg, a gigantic 130-tonne mass measuring 250 metres in length, which took a total of nine weeks to excavate. It was the biggest fatberg ever discovered, and it vividly demonstrates that there really is no job too big for us to handle!
Additionally, we can offer advice on selecting the right grease traps for your property, and competitively priced contracts for the regular maintenance and cleaning of grease traps, so if you have any inquiries at all about our FOG disposal services, then give us a call on 0800 526 488, or use our online enquiry form.