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Certified Wastewater Specialists

Friendly and Knowledgeable Staff

Prior to being allowed on any customer job site or dealing with any customer issue all of our technicians and office staff begin their careers at Fiedler’s with a minimum of three months of orientation to their job requirements prior to being on their own in their job duties. Within one year of hire, all employees are required to further advance their training through the University of Minnesota SSTS Program or the Minnesota Onsite Wastewater Association to become certified wastewater specialists which will ensure they are able to assist the company in managing any of your wastewater needs.

Fiedler Staff
Septic Pumping Staff
Septic Maintenance Specialist
Maintenance Team
Wastewater Specialists
Certified Wastewater Specialists
Fiedler Pumping Mascot
Certified Wastewater Specialists
Wastewater Truck


Cindy Tiemann & Jeff Tiemann

President & Office Manager | Vice-President & Field Service Manager

Cindy and Jeff are co-owners of Fiedler Your Pumping Specialists, Inc. While some couples may have a hard time working together this couple seems to have it figured out. Cindy is certified by the MPCA as a Type 4 wastewater operator, Maintainer and Service Provider. Her 30+ years as a Registered Nurse and more than 25 years in management have played an integral role in managing the operations of business. Jeff’s 30+ years in Farming have made him a master of many things that go hand in hand with running a septic maintenance company. From dealing with trucks and equipment repairs, to land application, crop management and working with landowners to name a few.

In addition to this company, Jeff and Cindy also own a Crop farm near Royalton and raise chickens for Pilgrims Pride.When they are able to get away from everything for a day or so, you might be able to find them camping at their seasonal campground by Sauk Centre or they just might just be home enjoying time with their children or their 3 beautiful grandchildren. After all when you work together all week and you get along well, you might as well spend fun time together too!

Bre Vaillancourt

Scheduling Supervisor / Marketing & Quality Assurance Manager

Bre holds a Bachelor’s Degree in Business Management and specializes in quality improvement. Bre is also certified as a Type 4 wastewater operator by the MPCA.

She acts as the community liaison, as she oversees donation requests and is the lead coordinator for the company’s community service projects. Bre is also our main contact whenever you call our office. Rest assured; she is more than qualified to answer any of your wastewater questions!

When she is not in the office helping our customers, Bre can usually be found enjoying time with her husband and their three amazing and very energetic children.

Bobby Vaillancourt

Licensed Inspector / Certified Maintainer

You may recognize this familiar face; Bobby was employed as a maintainer with Fiedler’s from 2011-2015. He still holds that certification; however, he is now also a licensed septic inspector. He came back to our team in 2018 on a whole new venture. He acquired his inspector’s license and has been performing septic compliance inspections for homeowners that are listing their home or applying for a building permit. He will also be part of our service division, as well as operate a pump truck when others are on vacation or needing time off.

When Bobby is not performing his many tasks at hand, he can be found hunting at the family cabin or spending time with his wife and their 3 amazing children.

Darrell Dobis


Darrell came to Fiedlers with a long truck driving history and now has over 6 years of wastewater experience to add to that history. . Darrell has requested to take extra classes and training to ensure he is in the know about new technologies. Darrell is good at educating clients about their systems and has had many positive customer reviews about his ability to explain septic issues to customers who have never had a septic system before. . When Darrell isn’t working, he can be found making gourmet meals that make us all envious or he is spending time with his family and friends.

Mike Geise


Mike has worked in the trucking and customer service industries for over 20years. His long history of exemplary customer service and sales are clearly seen when customers call in and request him by name year after year . Mike is a go getter who doesn’t like to sit still! If you see him out on a job site, ask him what other jobs he does on the side! In his rare “free” time, Mike enjoys spending time with his family, children, and friends..

Art Betker

Customer Service Liaison | Certified Maintainer

Art holds a Class C certificate in wastewater management and is the company “go to guy” when it comes to specialty wastewater treatment systems. Art is also the company employee who manages any immediate customer concerns and he is usually the first person on the scene if additional assistance is needed on a job site. When Art isn’t helping our clients with their specialized system issues, he can be found helping his friends with their home improvement projects, working with his son, or hunting with his prized hunting dogs.

Roger Schraut


Roger Schraut is the newest member of our team, but he is already finalizing his maintainer certification and out in his own truck. Roger came to Fiedler’s with a strong work ethic and great construction background. When Roger isn’t here maintaining systems, he can be found helping on the farm side and spending time with his family.

Kenton Tiemann


Kenton is currently a part-time team member on our service division. He assists on jobs such as pump replacements, line jetting, and riser / cover installations. He is also nearing completion of his Maintainer Certification. When Kenton is not working here at Fiedler Pumping, he can be found helping on his family’s farm, working in the chicken barn or ripping around on his four-wheeler.

Serving Minnesota




Our certified wastewater specialists service residential, commercial, and industrial wastewater and septic services, including pumping, repair, maintenance, and inspection.