Porta Potty Forum
Log inAsk a question

Buying a used vacuum truck in 2026: what to look for.

Deb K.asked 1 viewRental OperatorsVacuum truckBuying vs rentingRental operatorsBuying equipmentFleet expansion

I run a small rental operation with a dozen standard units and one ADA-compliant unit, and I'm ready to add a second vacuum truck to handle more routes. My current truck is a 2008 model, and I'm looking at used trucks from the last five to eight years. I know the basics: check for rust in the tank, test the pump's vacuum pressure, and make sure the PTO engages smoothly.

But what are the real red flags that turn a decent-looking truck into a money pit? I'm thinking about things like a chassis with a bad maintenance history, a tank that's been used for anything other than portable toilet waste, or a pump that's been run dry too many times. What should I absolutely walk away from?

1 answer

Sorted by votes
0
Ray M.Dallas, TX

Walk away from any used vacuum truck that has a tank with internal corrosion, a pump with a history of dry running, or a chassis with deferred maintenance on the brakes or suspension. A truck is a chassis plus a tank plus a pump, and a failure in any one of those means you are not working.

Check the tank with a strong flashlight through the cleanout port. Rust or scaling inside means the tank is near failure; a pitted floor will leak. Ask what the tank hauled. Portable toilet waste is relatively mild. If it hauled restaurant grease, chemicals or industrial waste, walk away. Those residues can ruin the tank and contaminate your waste stream, which violates disposal permits.

Test the vacuum pump under load. Listen for bearing noise and check the oil for milkiness, which means water intrusion. A pump that has been run dry repeatedly will have damaged vanes and seals. It will not hold pressure.

Get the chassis maintenance records. Look for consistent oil changes and, critically, brake and suspension work. A vacuum truck is heavy when full. Worn brakes or a sagging rear end are immediate safety and repair bills. A used truck from a rental company that serviced its own fleet is often a better bet than one from an auction with no history.

Your answer

Log in or create a free account to answer this question.

Related questions