Water contamination in marine fuel tanks is a persistent and often underestimated problem. Condensation, bio-diesel blends and long periods of fuel storage can all introduce or increase water content in diesel, creating the conditions for microbial growth (“diesel bug”), corrosion, blocked filters and, in worst cases, engine failure. For rescue and coastguard services, fuel-related breakdowns remain a familiar call-out category, particularly during peak boating periods when vessels sit for extended stretches and then return to service at short notice.
Aquafighter Australia, the distributor of DQTubes, says the product is designed to address the root cause: water and the contaminants that come with it. DQTubes are an in-tank diesel fuel filter solution intended to be left in the tank, where they can continually capture and isolate condensation and other contaminants over time.
“The marine industry doesn’t need another complicated process or expensive service call as a first response,” said Aquafighter CEO Simon Rose. “DQTubes are a practical, low-cost way to rescue fuel that’s already been compromised, and more importantly, to prevent problems in the first place. If you can keep water out of the equation, you dramatically reduce the risk of breakdowns when you need your engine most.”
According to Aquafighter, the DQTube is an evolution of the earlier Aquafighter technology, using a rigid cage to hold the active media inside the tank, where it can capture not only water but also dirt, dust, rust and other contaminants that accumulate in the bottom of fuel systems. Unlike treatments that dose the entire tank, the DQTube is positioned as a “leave-in-tank” approach that can be inspected at any time to check activity and condition.
Product sizing is straightforward, with options scaled to tank access and risk profile. Aquafighter lists DQ models from a 400ml capacity tube through to an XL unit absorbing up to 12 litres of water, with the smallest unit priced under $100. The DQTube remains active until its internal media is saturated; users can confirm status via a visual check, and absorption can also be tracked by weighing the tube before and after use.
Aquafighter Australia notes it has already sold hundreds of its earlier flexible units at higher price points, and now has DQTubes available as a more cost-effective, “fit-and-forget” option for many applications. For operators who have experienced contaminated fuel firsthand or simply want peace of mind before the next trip, dropping a DQTube into the tank could be an inexpensive step that helps avoid a very expensive day on the water.
For more information, visit their website HERE : https://www.aquafighter-australia.com/
