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Sewer Divers

Yesterday evenings episode of Supersized Earth, on BBC1 starring presenter Dallas Campbell, showed him raw sewage diving in Mexico City with Carlos Barrios Orta, a professional sewer diver.

The following article is taken from The Washington Post (www.washingtonpost.com) and goes into more detail as to what is expected of him:

Deep-Slime Divers Keep Vast and Smelly Sewers Flowing

Mexico City — Carlos Barrios Orta squeezed himself into his rubber diving suit, pulled on an 18-pound helmet that made him look like an astronaut, then lowered himself into the sewer. He disappeared into the filthy water, which looked like some cauldron of rancid beef stew, until the only sign of him was air bubbles breaking the surface.

“It’s very, very cold,” Barrios, 48, said into the radio microphone in his diving helmet.Above ground his partner, Julio Cesar Cu, monitored his radio transmissions and urged him to keep talking. As long as Barrios was still chattering away, it meant that he was okay, that his air hose was working properly and that he hadn’t been swept away to his death by an unexpected rush of waste — as happened to another diver some years ago.

It was 11 a.m. in a massive drain underneath Mexico City, where the smell of human waste and rotting trash was so strong it was hard for a visitor not to vomit. But it didn’t seem to bother Barrios, one of four divers who maintain the 600 miles of sewers and pipes beneath the biggest city in North America. He was just doing his job: keeping pumps and sewers clear.

“I feel plastic bottles, wires, glass,” said Barrios, his every breath exaggerated on the radio.

In the darkness of the sewer, Barrios could see nothing. He doesn’t bother to carry a light, because it would be of no use in the thick waters. He inched forward in his bright red suit, an airtight model that sealed away the disease all around him, feeling his way with his rubber gloves, listening in the darkness. He could hear the powerful, whirring pump that pushed the flow through a six-foot-wide pipe. His mission was to clear away the debris around it so it wouldn’t back up into city streets. Thousands of homes have been flooded in the past by dammed-up wastewater.

“I’ve got it!” Barrios said as he pushed away bottles, plastic bags and other junk he could not identify by touch. At least there were no human bodies today, like the two he found floating by recently.

Now Barrios was singing. “I live in the water, lah-deh-dah-dum.” It was a popular children’s song, “The Pretty Little Fish,” and Barrios sang it like he couldn’t possibly have been happier. He loves his job. Two years ago, he gave up a career in accounting for this — which, he noted, says something about accounting.

Barrios, a happy-go-lucky father of three, said none of it bothers him — not the smell, not the dangerous spinning pump blades, not even the two cadavers. He never found out who they were, because they were carried off in the flowing waters. The police were not called. The divers, who periodically encounter bodies because sewers are popular spots for dumping murder victims, only call police when they bring a body to the surface.

The radio crackled again. Barrios was still working to clear the big pump.

“I am not sure what this is,” he said. “Maybe glass bottles?”

“Stay alert. Don’t get cut,” Cu told him.

“Okay,” Barrios said. He’d been underwater 10 minutes, and Barrios said his body had adjusted to the cold about 24 feet deep in the 60-degree water. “I’m comfortable. It’s great. I feel the adrenaline.”

Barrios was pumped up. No office, no pencils, no spreadsheets, no routine. He did that for 24 years. He said he’s had more fun as a “wastewater diver” than he did in a quarter century of totaling up stacks of numbers. And he’s proud that he’s providing a service for his city, which has few resources for a more modern sewage system and must rely on divers to keep the aging equipment humming.

Sewer Divers

His adventure, as he calls it, was at this moment leading him to large pieces of wood floating dangerously close to the pump pushing the waste of a city of 20 million to treatment plants. Who knows how the lumber — or for that matter, the plastic bags, toothpaste tubes, shoes and other discards — ended up here? Perhaps some poor family’s shack was washed away by heavy rains and flowed into the sewers.

Barrios snagged one beam, then another, with a hooked crowbar, putting them in a steel cage that hauled them to the surface. For this, Barrios earns about $480 a month. It’s not much, certainly — his diving helmet alone cost the city $3,500 — but it’s more than he ever made as an accountant. He has never been sick, but his wife and children love to kid him when he comes home from a day in the sewers, shouting, “Don’t come near me!”The scariest thing, Barrios said, was when his gloves felt what he thought was a human arm. He radioed that he feared he was bringing up a dead child. “But it turned out to be a teddy bear,” he said. “It was such a relief.”

Barrios is a compact man, not quite 5-feet-6, with an easy smile. He swims competitively, and dreams that when his young children finish school, he can move to the sea, perhaps on the Gulf of Mexico, to swim and dive in crystal-clear waters. But for the moment, he said, he’s happy to know that while there are millions of divers in the oceans, only four have the privilege of diving in the Mexico City sewer system.

About a half hour after he lowered himself into the water, Barrios broke the surface. Cu and some others raised him to street level in a steel basket. Barrios said he felt great as Cu tossed buckets of soapy water on him to get the gunk off his diving suit. Barrios then peeled himself out of it, and he and Cu stowed their equipment for the next dive.

Lunchtime. Barrios said he had sure worked up an appetite down there.

He was ready for a taco.

Thames Tideway

“A cleaner, healthier River Thames is essential for the wellbeing of the city as a whole. The Thames Tideway Tunnel will ensure the country’s capital remains a flourishing business centre and tourist destination, protecting the city’s reputation around the world. The river is a great, under-used asset for the capital that must be protected.” – Thames Water

The Thames Tideway Tunnel is a major new project planned to increase the capacity of London’s Victorian sewage system and to prevent increasing pollution in the River Thames, from sewage overflows.

The demands of modern day London are unfortunately taking their toll on the current system and although built to last, it was never designed with the growth we are experiencing, in mind. Nearly 40 million tonnes of untreated sewage escapes into the River on average, a year and this is gradually increasing.

The estimated cost of the project was £3.6 billion, which has since risen to £4.1 billion, which excludes various other related works and upgrades. It is scheduled to be completed by 2023 and will make way for the UK to meet European environmental standards.

Thames Water, the Environmental Agency, DEFRA and the Greater London Authority have all been working together, devising the proposed project, which will comprise of a storage and transfer tunnel, under the Thames riverbed.

Like any major project it has received its fair share of negative press which is due to a number of reasons:

  1. Although the tunnel will prevent increasing pollution in the Thames and any sewage overflows, campaigners feel that it does not deal sufficiently enough with the increasing volume of sewage in the capital.
  2. C02 emissions will be produced, from pumping effluent, causing a environmental impact, in addition to areas such as parks and brownfield sites being utilised.
  3. The economic cost means that the average Thames Water customer’s bill could rise to over £50.

Whether in agreement or not the population of London, along with the Thames, do need action taken immediately as mentioned before, our current sewage system was never designed for the growth we are currently experiencing.

If you wish to find out more please view the short video below from Thames Water:

Private Sewers

The following video gives a general overview of the sewer transfer:

In autumn last year, water and sewage companies in the UK became responsible for private sewers, which were formerly the sole responsibility of property owners.

This meant the ownership and maintenance of private sewers was transferred, bringing peace of mind and clarity regarding ownership.

Not all private pipes were included though. There are certain cases where property owners remain responsible for the sections of pipe between the buildings and the transferred private sewer or lateral drain.

Due to the way the sewers and drains are connected, the way you’re affected by the transfer depends on the type of property you currently reside in.

You are still responsible for any domestic plumbing and for the section of pipe leading to the newly transferred sewer.

If you experience a problem with a sewer pipe or drain, simply carry out the following steps as it’s important that you try and identify where the problem is:

  •  If you have a shared sewer, try asking your neighbours if they are experiencing problems.
  • If they aren’t, it’s more than likely that the problem is on your section of pipe or waste plumbing, meaning you will need to resolve it yourself.
  • If your neighbours do have a problem, it may be in a shared section of pipe.

Some properties are connected to a private pumping station before they connect onto the main sewer network.

It’s likely you will know this already if this is the case.

Examples of these situations include small housing developments, remote farms or small business parks.

The Government plans to transfer the ownership of these pumping stations to water companies on by October 2016.

Until this time, the owner(s) of the pumping station will continue to be responsible for its maintenance and repair.

For FAQ’S and the source of the above information see Thames Water:

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