‘Fatberg’. The word conjures up images of large blocks of fat, oil and grease, like the one found in Kingston in 2013 that weighed 15 tonnes and was reported to be the size of a double decker bus. However, the label is misleading. Fatbergs build up from the fats which are disposed into the sewers…

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Misinformation causes problems. In the sewerage industry, nowhere is this more evident than the misinformation swirling around about whether wipes of any variety are suitable for flushing down the toilet. Our advice is clear – wipes should never, ever be flushed. Sewer issues caused by wipes may be a recent phenomenon, but wipes now account…

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Sewerage systems shouldn’t be noticed. The ideal sewer running from any residential, commercial, or industrial site into the main system should take foul water and waste away smoothly and without issue. While this generally happens, we soon recognise when something has gone wrong. A common issue is the so-called ‘fatbergs’ of congealed fat, oil, gas…

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Mechanical seal failure is one of most common reasons that a pump fails. These seals retain fluid within the pump utilising two flat surfaces, one stationary and one rotating. They are far more effective than the traditional pump shaft seals of soft packing, but, to get the best out of mechanical seals, you need to…

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Harro Group 2015

Harro Group have recently moved to a larger, more extensive premises giving the business access to greater resources. The new premises has over 5 times the floor area and a new, efficient workshop enabling us to carry out larger projects quickly.

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