Drum Machine

So, as the story goes, a sales rep out west who had spent decades selling a competitor’s plumbing products is hired by General Pipe Cleaners. After initial training, he returned to his territory with a smattering of cables, cutters and drain cleaning machines to get him started. The first time he demonstrated the Flexicore Cable Read more

So, as the story goes, a sales rep out west who had spent decades selling a competitor’s plumbing products is hired by General Pipe Cleaners. After initial training, he returned to his territory with a smattering of cables, cutters and drain cleaning machines to get him started.

The first time he demonstrated the Flexicore Cable, he called the company to complain that the pipe snake, “just didn’t feel right!” It felt “limp”, not “springy.”

As Dave Dunbar, National Sales Manager with General Pipe Cleaners explained, “the Flexicore engineering process has the effect of making the cable feel less springy than hollow cables.”

It took a few phone calls to get things straightened out with the rep, but then six months later, he was complaining that the cables lasted so much longer than his former brand’s that he was only selling a fraction of his previous replacement snakes. A small fraction.

It was this story that interested a few of our contractor friends. Why would it be springy? Is it really that stiff and is that a good thing? Would it really last longer?

Knowing General Pipe Cleaners would be at the WWETT Show this past spring, I introduced the General’s team to a few drain cleaning contractors that we are big fans of and have worked with in the past. It was my hope that we could create some valuable and interesting content based on the original story and the contractors having never used Flexicore.

It was soon after the show that we asked for them to send a few of their Flexicore cables to a few of our ProStaff team members to get their thoughts on the cable. They obliged and three drain cleaning pros were sent the cables to use on their existing cable machines, which for transparency, were all competitor drum machines.

As you may know, the Flexicore cable is the result of a process, where instead of coiling a hollow cable, they tightly wrap spring steel around a 49 strand aircraft quality wire rope. This provides the cable additional strength when it is under torque.

Each member of our team received a variety of Flexicore cables based on their typical daily drain cleaning challenges with the request to use them over a couple of months and provide feedback. The team of contractors included Felix Delgadillo, DrainGuys (Chicago), Terence Chan, Impetus Plumbing (Vancouver) and Jeff Keller, Bulldog Contractors (Texas), all are longtime drain cleaning professionals in their area of the country.

As expected, those daily challenges included providing both residential and commercial services, addressing clogged kitchen drains, clogged bathroom drains, clogged outdoor drains, and clogged sewer lines using today’s best technology to unclog lines to keep the water flowing.

While Keller, Chan and Delgadillo confirmed that this was the first time using the cable, Chan stated what all three mentioned, “I’ve never used the product but very excited to see what it can do.”

Chan went on to say, “Initially seeing the product, I was a bit leery how it may hold on to the heads, but it did, really well. In fact, I’ve had trouble with heads from a competitor and the Flexicore held.”

“The screws to hold on the head versus a snap lock is a nice addition,” said Keller.

One of the unique byproducts of the Flexicore process is that the cable stiffens and gets stronger under torque, which Delgadillo agreed, “the cable feels less springy and it does get quite stiff when the operator needs it the most.”

Keller continued, “it caught me off guard and took some getting used to. Most if not all drain cleaners/plumbers are used to listening to their machines and the feel of the strain on the cable to evaluate the blockage, so this was a bit different, but did a solid job.”

As discussed in the WWETT video, when a drain cleaning machine rotates a pipe snake down the drain and it hits a clog or stoppage, tension or torque builds up in the cable. Because of the direction the drum is turning, the reaction of the outer coil of spring steel is that it wants to contract due to the tension. However, because the wire rope is in the way, the only thing that it can do is tighten, which makes it stiffer and stronger and the cable much less likely to kink or break when in use.

Chan concluded, “I would recommend this to peers in the field as it got the job done. I’m curious to see the long-term difference versus some of the cables we typically use and recommend everyone make sure they have the cable sizes they need for their machines.”

We second that Terence! Be sure to size your cables correctly so it all works perfectly.

While the contractors are still using the cables in the field, it was a unanimous decision that more time in the field was needed to truly understand the value of Flexicore cables and how it holds up long term versus other options.

We will continue to check in with the team to provide updates later in the year.

Contractor Bios:

Felix Delgadillo – He has been in the plumbing trades for over 15 years. Most of his experience has been in remodels & new construction for both commercial and residential. He is passionate about new construction and wanted to expand professionally to the service side. In 2019 he started his second company, Drain Guys, LLC. Drain Guys specializes in commercial and residential sewer cleaning, camera inspections & locating.

IG: www.instagram.com/drainguyschicago

Facebook: www.facebook.com/Drainguyschicago


Terence Chan – He is a plumbing, heating and gas contractor out of Vancouver, BC, Canada. His company is Impetus Plumbing and Heating. Impetus stands for a force that makes something happen, which stands for everything their name defines them to be.  We make everything happen and will never say no to any job. This company wants to be seen as the next up and coming generation that will make a difference and disturb the status quo in the current trade.

IG: www.instagram.com/impetuspandh

Facebook: www.facebook.com/impetuspandh


Jeff Keller – Bulldog Contractors allows him to work alongside his father Carl and other Bulldog team members. For over 35 years, Bulldog Contractors have brought areas of Northeast Texas first class plumbing and septic service, experience, and quality work with exceptional results. They are committed to exceed the expectations of our customers with quality service and expertise on every project we do. With a lot of repeat business, they have built long-term & trusting relationships over the years.

IG: www.instagram.com/jkeller1.0

Facebook: www.facebook.com/builditlikebulldog