A Boat's Biggest Fuel Concern: Removing Water from Fuel Tank
Fri, Aug 25, 2023
Despite all the time a boat spends in an aqueous environment, boat engines aren’t designed to handle water content, especially in and around the fuel tank. Getting water in fuel on a boat can result in engine performance issues and costly damage – but why?
Water can get into the boats fuel tank in several ways, from condensation in the tank, ingress from a crack in the fill cap, and from the natural water content in today’s biodiesel. If left, water in fuel on the boat causes diesel “bug” sludge which blocks filters, damages pumps and then gets pulled into the boat’s fuel system which can lead to potential engine failure, fuel system corrosion and poor fuel efficiency.
However the water in the fuel on your boat got in there, it needs to be acted on quickly. Let’s look at the symptoms of having water in the fuel and then the solution!
Water in boat fuel tank symptoms - what to look out for!
The performance of a boat’s engine will be noticeably reduced if water has entered or condensed in the fuel tank. This can show as trouble accelerating and getting the boat up to speed, engine hesitation with a spluttering sound, and the final tell-tale sign: cloudy or milky fuel.
it is good practice to take a sample of your fuel and check for the presence of water from your tank. Water can appear in fuel in 3 different ways:
- Cloudy fuel - the water has become emulsified in the fuel and the fuels opacity changes to a milky or cloudy appearance.
- Fuel with a layer of ‘free water’ at the bottom – the water is too heavy to cling to the diesel and sinks to the bottom in a clear layer.
- Bound water – the water has dissolved into the fuel and mixed, making it harder to distinguish before the dreaded diesel bugs start forming.
If the water in fuel on your boat is left and not dealt with, it will corrode the engine and fuel system, and can result in a nasty diesel bug sludge that blocks pipework and causes costly damage and downtime to the boat after refuelling. Keeping the tank almost full of fuel to reduce the amount of condensation can help but filling it more than 95% won’t allow for expansion. So, what else can be done if you’ve experienced water in boat fuel tank symptoms?
How to get water out of a boat fuel tank to prevent it happening again!
The Aquafighter fuel tank water absorber is a simple and cost-effective solution for capturing, absorbing, and removing water from a boat fuel tank – whether free, bound or emulsified. Whilst other solutions only deal with the free water, Aquafighter preserving the fuel tank condition better than other absorbers and additives do!
The Aquafighter Finger model is designed to be added directly into the boat’s fuel tank due to its size and portability, making it an ideal solution for water in a boat fuel tank removal!
The Aquafighter Finger fuel tank water absorber is easily installed and reduces the water content levels down to less than 75ppm, which exceeds the EN590 diesel fuel standards of 200ppm, making it the best on the market for boat fuel tank water absorbers.
Then the Aquafighter is simply removed from the boats fuel tank before starting the engine and then added back in once docked.
Whether you’ve already experienced water in boat fuel tank symptoms, or simply want to prevent the inevitable whilst your boat is stored away for winter, the Aquafighter fuel tank water absorber can help you in removing water from your boat’s fuel tank!
Don’t wait to protect your boat’s fuel tank from water contamination. Purchase the Aquafighter Finger Fuel Tank water absorber today!