Grease Traps: Do you need one?


Put in very simple terms a grease trap is a drainage system that separates fats and grease from the main drainage system. If you’re a homeowner and a cook you’ll probably already know that as fat, oil and grease from cooking cools, it hardens and congeals. It doesn’t take a great leap of imagination to see how this could cause blocked drains, which would stop water and other waste draining away.

The usual suggestion here, and this is something that adverts love to tell you, is to use something like bleach or detergents for drain unblocking to cleanse the pipes. Like most quick fixes, this is only temporary and, in most cases, will only cause the blockage to move further down into your drainage system where it will accumulate and cause another, bigger blockage.

This is where grease traps come in. They’re relatively unknown to London’s domestic market but are something that’s becoming increasingly popular with commercial customers (see below). They work by trapping grease and fats on the surface while allowing water to drain from the system, meaning that you’ll never have to get the plunger out again. They also deal with the collected grease by using a variety of bacteria (don’t worry, they’re good bacteria!) to eat away at the grease and convert it into mainly water and some carbon dioxide. If you have a large, hungry household in London and are worried about the level of grease in your pipes then a grease trap may be for you. In most cases the single cost will offset the stress and cost of having to get your pipes cleansed time and time again.



There is virtually no kind of working kitchen, in any environment, that would not benefit from having a grease trap installed. In most commercial kitchens, and especially in London, water discharges from a 50mm waste pipe system into a 110mm pipe and a grease trap is usually fitted either at the source, in the washing-up area, before entering the main sewer line. Either that or it’s fitted underground before the sewer line connects with effluent waste flowing from the toilets.

As mentioned above, but on a more industrial scale, the purpose of a grease trap is to separate and trap oil and grease, together with any foreign articles such as cloths, cutlery, etc before they enter the sewage system, in order to prevent blocked drains. For a commercial property in London blocked drains can be really serious, as they can contravene health and safety legislation, which can be fatal for culinary businesses. Even if yours isn’t, a blocked drain can still seriously affect employee health, can attract vermin and, if left unchecked, can also cause structural issues.

In this day and age most commercial kitchens have a grease trap already fitted but if yours doesn’t, you should really consider getting one installed today.


Do you have blocked drains?

The message here is always check, if you have blocked drains in London then you need to find the root of the problem and tackle it using professional help before it grows beyond your control. Please get in touch either via the Contact Us section on our website or call us on  020 3556 4453 24 hours a day, 7 days a week, 365 days a year!

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