OXFORD’S water provider called on customers not to pour fat down the sink as part of its “war on fatbergs.”
Warnings about what to not put down the drains came after Thames Water revealed that last year it unclogged 247 sewers in the city and a further 1,446 sewers in the rest of Oxfordshire.
Though the figures were down from 347 and 1,572 in 2012 respectively, the firm said it faces an ongoing battle to keep the county’s sewers flowing freely.
The company’s campaigns and communications executive, Craig Rance, said: “Unfortunately, blockages are so frequent that clearing them has become routine.
“But it is still part of our war on fatbergs to help prevent blockages from occurring and customers from flooding with sewage due to blockages.”
He added: “When fat congeals in sewers it doesn’t stay soft like you might think.
“A fat blockage can go hard like chalk. This means that we have to use powerful jets to break up the blockage, and using a tanker, suck the debris from the sewer further on.
“This is then taken to specialist landfill sites around the country.”
Oxford city centre experienced the problems clogged sewers can bring when a giant ball of fat – dubbed a fatberg – caused a sewer in Park End Street to collapse in April.
Work to clear the blockage brought traffic in Frideswide Square to a standstill.
Fatbergs form when cooking fat is poured down sinks and items like wet wipes are flushed down toilets, before hardening and blocking pipes.
The figures were released after Thames Water cleared sewers on the junction of Osler Road and St Andrew’s Road, in Headington, last month to prevent another fatberg. Oxford city councillor for Headington, Ruth Wilkinson said: “There's been a long history of sewage spills in this area – five in the last two years alone.
“It's very unpleasant but we demanded stronger action and I'm really pleased at the positive response we got from Thames Water.”
Three sections of sewers in Headington – totalling about 500 meters – were cleaned out by chain jetting.
This involved a water hose with chains attached to a propeller to cut through fat and grease.
Another city councillor for Headington, Altaf Khan, said: “Blocked sewers are quite a big problem. People will complain when they get blocked and Thames Water will come to clear it.
“But people need to not put as much greasy food and fat in sinks, and for that there needs to be more education and easy ways of disposing of that food.”
Thames Water spokesman Becky Trotman said: “After repeat blockages in the sewer we arranged for a high pressure jet to remove fat, oil and grease to prevent a fatberg forming.”
Thames Water said it monitors its sewers with CCTV to judge which ones are at risk of becoming blocked.
Known ‘hotspots’ in Oxford include areas where lots of sewers converge, including Frideswide Square, Botley Road and Cowley Road.
The firm spends about £12m unblocking sewers across its region each year, which it says is funded through customers’ bills.
Small blockages can be cleared in two hours, but larger operations can last for up to three weeks.
3 golden rules to avoid a blockage
- Don’t dispose of fat down the sink. Instead people should collect it in a tray or foil, wait for it to harden and then bin it.
- Wet wipes and baby wipes shouldn’t be flushed down the toilet, but instead they should be binned too.
- Cotton wool buds and anything else that doesn’t break up should also be binned, rather than flushed down drains.
- Do you want alerts delivered straight to your phone via our WhatsApp service? Text NEWS or SPORT or NEWS AND SPORT, depending on which services you want, and your full name to 07767 417704. Save our number into your phone’s contacts as Oxford Mail WhatsApp and ensure you have WhatsApp installed.
11:20am Monday 28th July 2014
What do you think? We welcome letters from our readers on a wide variety of subjects and you can send us a letter through the blue headline above.
- Our top stories
12:00pm Friday 19th December 2014
A PENSIONER was “severely” injured when he was attacked in his car by a motorcyclist in Cutteslowe, police said.
11:30am Friday 19th December 2014
A BODY was found after a fire at a caravan site motorhome.
6:00am Tuesday 9th December 2014
December is Advent Calendar time and we have a special new interactive graphic for you each and every day until Christmas Eve. I've chosen the best 24 pictures of 2014 and I'll be unveiling one a day - so what is behind's today's door?
9:30am Friday 19th December 2014
John Campbell admits it would be difficult to keep his kit on if he was able to make an impact on debut for Oxford United tomorrow.
7:00am Friday 19th December 2014
SWIMMING competitions planned for the new £9.2m pool in Blackbird Leys could be at risk due to lack of space, it has been warned.
Six 'all clear' women told they have cancer after investigation into Oxfordshire Breast Screening Service assessments
7:40am Thursday 18th December 2014
SIX women who were given the all clear after breast cancer screening have been told they have the disease following an investigation.