Common seller tricks in septic
Sellers will talk about a full route of tanks and skip the dump fees, the plant relationship, and any notices from the county.
- A pumping route counted at peak season, with winter access problems left out.
- Install or repair revenue mixed in as if it were recurring pumping.
- A disposal site that is informal, at-capacity, or not clearly available to a new owner.
- Trucks with tired tanks, pumps, or unaddressed inspection issues.
- Thin paperwork on where waste actually went.
Which numbers to verify
Separate pumping, inspections, installs, and repairs. Reconcile deposits and look at dump fees as a share of revenue — they can move and they are not optional. Route density and gallons per day matter. Recast the owner’s days on a truck. If installs are a big slice, treat them as project work with warranty risk, not as a route.
Licensing and key-person risk
Pumping, hauling, and installing are usually licensed separately, sometimes by the state and the county. Disposal is often the constraint: you need a plant or lagoon that will take the waste, at a known fee, in your name. Ask about inspections, violations, and whether the seller has had loads rejected. Those files travel with the reputation of the company.
Equipment and condition
Tank trucks are specialized and expensive to replace. Inspect tanks, pumps, valves, hoses, and mileage. A truck that cannot pass inspection is not an asset. Jetters and cameras, if they do repairs, need the same look. Confirm there are no environmental liens.
Seasonality and the calendar
Frozen ground and holidays change access. Spring can be slammed. A route that looks even on paper may be impossible in a hard winter. Ask how many tanks are seasonal camps or weekend homes. Closing in late fall without a cash plan is a long wait in some climates.
Customer concentration
A few campgrounds, parks, or property managers can be a large share of gallons. Residential routes are more stable if customers are used to a company name, not just a driver. If one disposal plant is the only option for miles, that plant is a concentration risk too.
Questions to ask before you make an offer
- Where do you legally dispose of waste, at what fees, and will that plant accept a new owner?
- Please split pumping, inspection, and install revenue by month for three years, with deposits to match.
- What licenses and decals are required, and what is involved in putting them in my name?
- May I review inspections, violations, or rejected loads from the last five years?
- May I inspect each tank truck, including tank condition, pumps, and any out-of-service notices?
- What share of gallons comes from your largest five customers, and are those accounts under contract?
- How is winter or weather access handled, and how much does volume drop in the slow months?
- Are there unpaid dump fees, environmental claims, or neighbor complaints?
- Which drivers are licensed for this work, and will they stay?
- After an LOI, may I speak with your accountant and the disposal plant?