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Removing water from oil tank with a tank sponge

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Tank Sponge

Part Code:
WAS-10 WAS-15
Removes 0.5 or 1 Litre of water
£21.00 (exc VAT) £25.20 (inc VAT)
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Water Soaking Oil Tank Sponge


Water build up or condensation naturally happens in all fuel storage tanks (especially metal ones) because of the constant atmospheric temperature changes. Water contamination then settles at the bottom of the tank. 

If there is water present in fuel (Kerosene or Gas Oil) a number of problems can occur:

1)      Water can enter the heating system instead of the fuel and cause damage to the burner or boiler.

2)      Water can increase the growth of bacteria and as a result promote tank sludge.

3)      The presence of water will rapidly increase rusting of a metal tank and metal components in the heating system.

4)      Water can freeze in the tank which can then cause the fuel to degrade

Condensation occurs in most Heating Oil and Red Diesel tanks which can not only contaminate the fuel, but causes rust to develop, unseen, in the bottom of steel tanks.

The Tank Sponge is weighted so that it lays flat on the bottom of your tank. Containing super absorbent polymers which soaks up any water but is impervious to fuel.

When the tank sponge is full it can be removed and replaced.

Removing the water in your tank will help maintain the quality of your fuel and enable your system to run cleaner and more efficiently, giving you the peace of mind that your fuel will work to its maximum capability.


The tank sponge can be purchased individually or as part of a water removal kit, which includes other products to help you combat the problem for good. Save 10% on the tank sponge when purchased with a kit.

Water removal help video
  • Water removal help video

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