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Compact articulating boom for lifting into tight, obstructed spaces.
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The GM-3500T is a 3,500-liter tractor-drawn vacuum truck (also called a vac truck, hydrovac truck, or pumper truck) for municipal and industrial liquid waste removal — a low-cost entry point for operations that already have a suitable towing tractor and don't need a dedicated truck chassis.
Page last updated: September 9, 2026
A 390 cum/hr vacuum pump, driven off the towing tractor's PTO, generates high vacuum in the tank to siphon effluent, liquids, and sludge out of sewer lines, septic tanks, lift stations, and catch basins through a 3" x 15m suction hose. A sludge stirring arrangement uses high-velocity air to convert solid silt into a liquid or semi-liquid slurry the pump can draw up, and a blow-back system can then discharge just the water content of the tank under pressure, so the load carries away the sludge without hauling unwanted water weight. Primary and secondary ball-float shut-offs, plus a basket strainer, protect the pump from solids and tank overflow.
Available hydraulic features vary across the GM-series by tank size. On the GM-3500T:
Hydraulic tilting and door opening become available starting with the GM-3000; hydraulic door locking from the GM-5000; and a hydraulically operated suction hose reel on the GM-8000.
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No — the trailer-mounted GM-3500T uses manual tank tipping and a manually opened rear door. Hydraulic tilting and door opening are available starting with the GM-3000.
A tractor with a working PTO to drive the 390 cum/hr vacuum pump — no separate truck chassis is required.
Yes — a derrick arm is available as an option on every model in the GM-series, including the GM-3500T.
A 3" (75mm) x 15m heavy-duty PVC hose, matched to its 390 cum/hr vacuum pump flow.
