Most septic companies don’t fail because septic is hard—they fail because they make bad financial decisions early on. In this episode of Jackquisitions, Jack breaks down one of the biggest mistakes new septic operators make: buying the wrong truck.
From $300K showpiece vacuum trucks to practical used rigs that actually make money, Jack explains how to think about equipment like an operator—not a truck enthusiast. He covers what to look for when buying your first septic truck, the hidden costs that crush cash flow, and why reliability matters more than chrome.
In this episode, we cover:
→ Why flashy vacuum trucks can bankrupt new septic companies
→ The real cost of financing a $250K–$350K septic truck
→ What to look for in a used vacuum truck before buying
→ Common red flags: rust, bad welds, vacuum leaks, and homemade modifications
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Most septic companies don't fail because the owner's bad at septic. Septic's not inherently hard. There's no engineering. There's nothing crazy about septic that makes business owners fail in this industry. They fail usually nine out of ten times because they make really bad financial decisions. And they make those decisions early on. And one of those biggest decisions that we see really often in this industry is around trucks. It's around which trucks they buy and how they buy trucks. And the reason that this causes so much turmoil with septic companies is because a septic truck, a vacuum truck, brand new, the beautiful polished tanks, the huge builds with the perfect paint and wrap and everything, it can be 250 to 350,000. The loan payments on that alone at a six or seven percent is like six thousand, seven thousand dollars a month. And so when you're an owner, you're thinking, hey, this is what makes a septic company look real. But looking real and actually functioning as a business
are two completely separate things. You might want to be an established septic company that looks like they've already got it, already have it together, already have those customers and roots, and technicians, and systems, and cash flow. But when you're starting, the goal's not to buy the nicest truck, it's not to have all those things or even have customers perceive those things. The goal is to have something reliable and have something cheap enough that you can sustain it over a long period of time until your cash flow actually warrants buying one of these big trucks or leasing one of these big trucks. Because if your first truck payment's too big, you're not building a septic company, you're working just to pay off the truck, you're working just to cover the expense. So the real question is when you're after you get your licensing and after you get ready to go, it's what truck should I buy when starting a septic company? And this is the worst answer ever, but it depends, right? It depends on what kind of septic company you're actually starting. Because septic company doesn't mean one thing. There's septic repair companies, there's plumbing companies, there's septic installation companies, there's inspection companies, there's maintenance companies, and each one of these things needs a different truck. But if you're starting a septic pumping company, yes, you will need a vacuum truck to start. And that's what we're gonna focus on today because that's what most people picture when starting a septic company. So you show up, you locate the tank, you pump it out, you haul the waste, you dispose of it properly, and you charge the customer and you come back once or twice a year. Good ticket, not super high, but definitely a good ticket, recurring demand and a solid need that no one else wants to do in rural and semi-rual markets. But it's also the most expensive version of septic to start because the vacuum truck is the main asset. And if that truck goes down, your business is down.
If you start with pumping, you need to have a very disciplined way that you're buying that first truck. When you're looking at trucks, it's not the biggest tank you can find, it's not the newest or the nicest showpiece. Usually it's a used single-axle VAC truck on a common chassis. Um, thinking international, think Freightliner, maybe Kenworth or Peterbilt, if the deal makes sense on those ones. But you don't want to get too emotionally charged about the badge. You don't want to get the the brand is not, it does not matter in the long run. I know people who love trucks and who are getting into this because they love trucks, they're going to have a style and a one that they want. Uh, but that being said, if you're just starting, don't focus on that. Please don't focus on that because you're not buying or building a lifestyle brand. You just need a tool. You need a tool to start and produce revenue day one. And for residential septic, I would generally be looking uh somewhere around a thousand to two thousand gallon range, big enough to like do real tanks and real work, but still small enough to maneuver around neighborhoods and driveways and tighter properties, especially if you don't have a huge history of driving large trucks. And massive trucks sounds impressive. It's uh but bigger in this case is not always better. Bigger sometimes means hey, you're ripping parts and pieces off your truck as you're hitting trees going into people's yards looking for their tanks, or you're sinking the tires in the mud because the tank is too big for this little yard and it just rained. So bigger can mean more expensive repairs, more fuel costs, harder access, more weight, and more pressure because of the cost to keep it busy. So earlier on, start smaller, one to two thousand gallon range, and that's less of a risk for your demand. When you're shopping for used vacuum trucks, ignore the stuff that doesn't matter. Paint. Don't who cares, right? Who cares about the paint? Chrome doesn't create any kind of cash flow. The the person's truck, you know, the house you're you're pumping, they're not like, oh, chrome and paint, like this is a nice truck, better
pay them more. They don't care. They want the service, they need the service. That's where that stops. The customer just doesn't care if it looks amazing. They care that you answer the phone, show up to do the work, communicate clearly, and don't destroy their yard in the process. So focus on the mechanical side of the truck, the chassis. Is it a common chassis? Will local mechanics work on it? Are the parts easy to get? And that's why like international and freight liner, super common, not always sexy, but they're everywhere. And then, second, we move to the engine, right? Engine's extremely important because I mean that's that's the business is like getting around the ability to put high levels of mileage on this truck while still operating regularly. And so we're looking at like older Cummins platforms are my favorite, uh like DT 466s, because they're known serviceable, they generally easier to deal with, and they're generally easier to deal with than the newer emissions heavy vehicles. So, like that, the old Cummins platform is one of the most is one of the perfect platforms to start on. But all that being said, that doesn't mean every old truck is is good. It's just like old junk can still be junk, right? So now we've we've got the chassis, good chassis, good engine, decent engine, maybe 100,000 miles, 150,000 miles. Who knows? Now we're looking at the tank, right? This is huge. Uh, as you're inspecting, it might be a good idea to bring somebody along who understands how to buy these vehicles. Call around, see if you can buy a manager's time on the weekend to come help you inspect, do some walk uh shop walkthroughs of septic companies and be like, hey, would you mind helping me look at a tank? Or would you mind helping me take a look at this vehicle that I have coming on this weekend? Uh, because small issues like this can turn into huge multi-week downtime problems. So when you're looking at the tank, you're looking at rust, you're looking for patches or thin spots, you're looking for welds that shouldn't really be there, uh, meaning that it's been patched already and that
somebody had to come through and reweld it. Uh, look at the tank mounts. How is it attached to the frame? Are those are they cracked? Are they vibe? Does the vibration pads look like they've been absolutely chewed away anywhere on the unit? Look at all the valves, make sure there's no cracks in the valves. Uh, look at all the plumbing systems because it's doesn't take much for again. Like I said, this is a real scenario that I've seen is low-hanging tree branch, truck, pump truck, hit, scrape, valve on the top, gone. Because the vacuum truck is not just a truck, like it's a tank, it's a pressurized tank. Uh, it has PTO, it has a pump, it has hoses, it has hydraulics. Like, there's a bunch of expensive pieces here that all have to work together to pump poop out of a hole into your tank. Like, that's as simple as it comes. So, you need someone who knows how to inspect vacuum trucks. If that's you, great. If it's not, a normal diesel mechanic, too, could probably inspect 75%. They can inspect the engine, chassis, transmission, uh, the things that actually allow you to get there, and then work with someone, maybe even a welder, a welder who can just do some quick inspections for you, see if that the welds are good, see if he sees any kind of weird stuff around the tank, because that's where you'll get a lot of your issues. That's all like the mechanical PTO, the mechanical systems, because the warning signs, I mean, they're not simple, but you you could probably spot a few of them: rust, vacuum leaks, missing maintenance records, any kind of homemade modifications are always a huge red flag for me. And that includes wiring. Like, hey, you see some weird wiring here that shouldn't be there. Sloppy welds, which is why generally I would bring a welder, um, because a sloppy weld generally kind of goes with that homemade modification thing that we're talking about. Anyway, when the seller says it needs a little work, just make sure that that's a giant red flag. You bring someone with you who knows what you don't know. Uh, because a little work on a vacuum truck, hey, it just needs a little work. It can end up being thousands of dollars, not only in repairs, but thousands more in downtime, especially as you're starting up and you need that reliability, you need that five-star review to be able to grow and to continue. Because you're missing jobs, you're missing reviews, you're losing momentum. So I would rather slightly overpay, not a ton, like don't mishear me here, but to get a boring maintained truck than the best deal. That's a roll of the dice. Um, because cheap ex cheap equipment, you have to pay for it twice, right? You pay for it the first time and then you have to pay for it when you repair it. Um, and so here's a part though, as you kind of finish that and wrap up that thought, that most people miss is you may not need to start with pumping at all. So if I were starting today uh and I needed to buy a truck, I would look at two paths. Um, path one is the low risk way. I know this is not a hey, what would you do when you buy a set or build a septic company, but I think it's an important part of this. Is the first step is the first path I should say is I wouldn't build
this pumping company, right? If you don't have the money to buy a decent truck and you don't have the ability or the credit to get a loan to buy a decent truck that's going to be reliable and take care of you as you take care of it, um, I would start with a septic maintenance and repair company, right? Get your feet under you, do some plumbing work. You can start with a much smaller truck, uh, maybe a truck you already have, and fill it with tools, and then go out there and just repair septic systems. That's a great option. You know, you could use a half-ton truck. You don't even need a ton, you just need a license and some tools. Path two is a much more direct path. The one that we just started talking about is if you have the capital, you have the industry knowledge, you have good lead source in terms of like okay, where you can buy trucks from single axle vacuum truck, common chassis, older diesel platform, one to two thousand gallon tank, good maintenance history, healthy pump, solid tank, no sketchy homemade modifications, and enough cash left over in your bank account for repairs, insurance, the first set of uh marketing, like all of that uh is so much more powerful than the actual truck itself because people love to think about the truck and to build this badass truck out, but they forget about the business portion. So that's what I would do if I had the capital, if I had the ability, that's where my first truck purchase would be. And that's how your early days of septic survive. It's not all of these like crazy good decisions. It's just like, hey, we we need to be responsible financially and then utilize that money properly. If you like what you heard, you want to hear more about septic, you want to hear more about a different business model, like, comment, share, put some information down in the comments below on what you think I did right, did wrong. Tell me what truck you're using and uh why you are such a better septic person than me. Till next time.
