Portable remotely controlled dredges featuring powerful agitator pumps so effective, they excavate material fast-er than diesel auger style dredges many times their size. Piranha dredges are ruggedly constructed yet compact and portable. Our pumps feature high chrome iron wear parts, heavy duty motors, and a unique external me-chanical agitator. Other manufacturers’ dredges skim material off the top of your sediment layer, pumping ex-cessive amounts of water with low solids content. Piranha dredges excavate from within the core of your material.