When you call Pump That Septic, you are choosing a team that delivers reliable septic solutions with professionalism and care. For more than 20 years, our focus has remained the same: give people the peace they deserve with dependable septic service, clear communication, and clean, professional work.
We are based in Cassopolis, Michigan, right next to Ross Beatty High School, and proudly serve homeowners and businesses throughout northwest Indiana and southwest Michigan. From routine septic service to advanced system installations, our team provides complete solutions so you can get back to normal life without stress.

We treat every property with respect and care, delivering dependable service you can trust every time.
We treat people and their stuff the way we want to be treated. We own our mistakes and refuse to cut corners or hide.
We get our information straight from the horse's mouth, keep folks updated on the plan, listen to the story, call or text, foresee and prevent future problems, and never send an invoice alone.
We are here to raise the bar in the septic industry. We take pride in our craft. We are public health professionals.
After launching an excavation business in 2005, founder Dervin Witmer recognized a broader need in the community: reliable, professional septic service. In 2006, Pump That Septic was established with a simple but powerful goal: do things differently.
Instead of rushed jobs and messy equipment, Dervin committed to clean trucks, friendly service, and work done right the first time. What started as a small family operation has grown into a trusted team of eight dedicated professionals.
Today, Pump That Septic serves more than 7,000 people across the region. Even as we grow, we remain focused on solving septic problems efficiently so customers can return to their daily lives with peace of mind.


Many septic companies only offer pumping. At Pump That Septic, we do much more.
As a full-service septic company, we provide:
Because we handle everything in-house, you do not have to make multiple phone calls or coordinate between contractors. One call to Pump That Septic connects you with a team that can manage your entire septic system from maintenance to installation. This full-service approach saves time, reduces stress, and ensures consistent quality across every phase of the project.
The standards, service, and experience that set us apart.
Based in Cassopolis, Michigan, we proudly provide septic service throughout northwest Indiana and southwest Michigan.
Priority Growth Markets
Where We’re Based
We Go the Extra Mile
50-Mile Service Radius. No matter where you are within our service region, our goal remains the same: provide prompt, professional, and always reliable septic service.