A hose and pump will be necessary to remove all water. Insert the hose directly into the tank and begin pumping into an approved container. If there is any fuel mixed with the water, take added precautions to ensure the fuel does not make contact with your body and keep in mind that this mixture is extremely dangerous.
The principle is 'dilution': with the first addition of clean water to dirty water, the dirty water becomes less dirty because it is diluted by the clean water. With the continued addition of clean water to dirty water, eventually the dirty water will be completely diluted and there will be no dirty water left; it will all be replaced by clean water.
Assuming the dirty fish tank has had fish and water in it, without doing various specialised water tests it is impossible to tell what is in it.
Gunk up the engine sooner.
when the water starts to get dirty if it is a bit dirty then leave it when it starts to get really dirty clean the filter and your fish tank
The only way to know for sure if a person has water in the gas tank is to drain the tank. Usually a car will sputter and die if there is water in the tank.
Diesel vehicles are known for their durability and efficiency, but they can still experience several common fuel-related problems that affect performance, reliability, and operating costs. One frequent issue is fuel contamination. Diesel is more prone than petrol to absorbing water through condensation, poor storage, or damaged seals. Water in the fuel system can lead to corrosion, bacterial growth, and injector damage. Microbial contamination—often referred to as “diesel bug”—occurs when bacteria thrive in the water–fuel interface, forming sludge that clogs filters and reduces fuel flow. Another common problem is fuel filter blockage. Over time, impurities, debris, and wax crystals can accumulate in the filter, restricting fuel supply and causing hard starting, rough idling, or stalling. Cold weather can also create gelling, where diesel thickens and solidifies, leading to poor combustion or complete fuel starvation if not treated with additives. Injector wear is another concern. Modern diesel engines rely on high-precision injectors, and even small particles or low-quality fuel can cause wear, resulting in reduced power, increased smoke, or poor fuel economy. Low-sulphur diesel, while cleaner, can reduce lubrication within the fuel system, causing premature component failure unless additives are used. Proper fuel storage, regular maintenance, and using quality fuel help minimise these issues—something PETRO Industrial (petroinddotcom) strongly emphasises for fleet reliability and longevity.
What will happen if water gets inside gas tank
remove the fuel tank and drain the water
skipping stall no start
bubbles on top of gas in tank
Water is heavier than gasoline, it will pool at the lowest point of the fuel tank.
Have you tried using gas line antifreeze? That will help to remove some of the water in the gas. The best way to make certain all the water is out of the tank is to siphon the gas out, let the tank air out and re-fill the tank with gas from a station you know does not have water in the gas.