How to get the most out of a metal pipe: C-retractors, like those used to make air filters, are used to extract carbon dioxide out of coal.
But the pipes themselves are usually made of copper, zinc, aluminum, stainless steel, or other materials, which are harder to fracture and bend than steel or aluminum.
That means the pipes are much more likely to crack under heavy impact.
They’re also less likely to be able to hold water when they break apart under water pressure.
C-reactive pipes, or CRS, have been around for decades, and the idea has come from two scientists, David Smith, of the University of Alabama at Birmingham, and James Hsieh, of North Carolina State University.
The problem is that they’re not very good at absorbing CO2.
CRS pipes have been the subject of numerous lawsuits.
In 2010, for example, a class-action suit brought by the U.S. EPA accused the CRS manufacturer of violating the Clean Air Act by “treating the CO2 released during the manufacturing process as carbon monoxide,” and failing to report the increase in CO2 levels as carbon dioxide.
And in 2014, a group of scientists filed a lawsuit claiming that the C-Rescue System used by a manufacturer in California to repair and reuse CRS pipe broke down under heavy water pressure and that the company was violating federal regulations.
The company, C&R Systems, was ordered to pay more than $1.7 million in fines.
But last year, Smith and Hsiek argued that they were not required to file a complaint against C&R Systems.
Instead, they asked the EPA to investigate.
Smith and his team had to spend nearly a year digging through government documents, including emails between the company and the EPA, in an attempt to understand what went wrong with the C&P System and why the pipes were so prone to failure under water.
To do this, they spent a lot of time looking at C&RP’s website, which has a disclaimer that it’s “a non-official website.”
In other words, it says it’s a service provided by a third party to help consumers understand the risks and problems associated with the products they use.
But as the group’s analysis of the company’s website revealed, the company itself was hardly the only company making CRS.
Other manufacturers use similar technology to repair C-rated pipes, including Kitec and S&ros.
The C&Ressystem.com website also contained a disclaimer saying that the site was not endorsed by the companies that sell the equipment.
So the group spent months studying the company website, going over every detail with the company, as well as contacting C&resystems representatives.
The group even hired a private investigator to look at the company.
The findings were not reassuring.
In an interview with Wired, Smith said that while he believes the company did indeed make the CRessystems CRS product, that the product was not reliable and that it did not have a long shelf life.
“I was quite shocked by the data I got from it,” he said.
“And it was not good at all.”
In an email to Wired, a company spokesperson pointed to a disclaimer on the Cressystems website that said the CRCS (Copper Resistor Clamp) System is not a replacement for CRCM (Coal Resistor Control Module) and is not intended for repair or replacement of C-Rated pipes.
“CRCS has not been tested for use with C-Series C-REVs or C-Tubes,” the spokesperson said.
That’s not the only problem the CNRP Group had with C&RTs.
Smith also noted that there were other problems with CNRPs products.
For instance, CNRp is the only manufacturer of CNR-1, a CRS device that has been banned in many states because of its failure to meet regulatory standards.
CNRs can be very expensive.
Smith said he’s received calls from customers who bought CNR1 and found that they had to pay $400 to repair their CNR devices because the CIRP System was so expensive.
The two companies have not yet responded to a request for comment.
The U.K.-based CNR Group, which is based in the United Kingdom, has been around since the 1980s and manufactures a variety of CRC products, including CIRPs and CIR-1.
The device is designed to be attached to a gas cylinder, but its effectiveness is unclear, because it’s designed to have a single electrode in place, and it can fail when the electrode fails.
In the United States, the CMR-1 is still used to repair pipes and has an expiration date of 2020, although Smith said the company does have plans to make it easier to repair.
He said he hoped that CMR1 would soon be made more widely available,