Tank Sponge Eco

Removing water from your tank is an essential part of regular tank maintenance.


Condensation is the major cause of water in tanks, but it’s also common for rainwater to enter cracks, seals and caps. Tank sludge is formed by water and contaminates fuel by creating semi-solid deposits that can enter engines and heating systems.

Tank Sponge Eco

  • Absorbs up to 700ml of water
  • Provides a visual indicator of the volume of water in your tank
  • Cleans your fuel and removes the cause of sludge
  • Helps to maintain your engine, fuel line, boiler and heating system

How does it work?

  1. Place the insert into the cage
  2. Feed the cage through the tank’s fill point until it rests at the bottom of the tank
  3. Check after two weeks – a full sponge indicates considerable water contamination

Order your Tank Sponge Eco for £30 inc. P&P

£30.00