Combo Unit

Combo vac trucks use both high-pressure water and a strong vacuum. They have 2 tanks onboard, one for fresh water, one for waste.


Most often, they are used for industrial cleaning, thawing out frozen sewer lines, and cleaning catch basins, culverts, and storm drains, and water cistern and septic tank cleaning.

Tandem Axle Combo Trucks

Tank Capacities:

Water Tank: 5000 Litres/ 1320 US Gallons / 1100 Imperial Gallons

Waste/Refuge Tank: 5000 Litres/ 1320 US Gallons/ 1100 Imperial Gallons

No water or vacuum need is too big or too small for Big Rock Water Hauling.

Call for a free quote

Water Volume Calculator

Water Volume Calculator

Calculate how much water you require:
(Cisterns, Pools & Hot tubs, and Skating rinks)