TankSponge Eco
Protecting your home heating and your oil tank with a tank sponge
Your heating oil tank plays a big part in keeping your home warm and cosy, but water inside the tank can cause problems you might not see coming. Whether it’s from condensation, rain entering through the cap, or just everyday wear and tear, water can damage your tank, affect your heating system, and may mean you have to fork out for costly repairs or a replacement.
That’s where our TankSponge Eco comes in — an easy, cost-effective, and eco-friendly way to soak up water and keep your oil supply in top condition.


A must-have for any heating oil tank
TankSponge Eco is a must-have for any heating oil tank
Nobody wants unexpected heating issues, especially when it’s cold outside. Water in your oil tank can lead to potential problems like:
- Damaged tanks: Water entering your tank can cause corrosion in metal tanks, leaks over time, cracks, and even the failure of the tank’s structure.
- Clogged filters: Water encourages bacteria and sludge to grow, which can block your system, lead to costly repairs, and cause extensive damage to your boiler and heating system.
- Higher bills: Contaminated oil makes your boiler work harder, reducing efficiency and costing you more.
- Fuel degradation: If water freezes in your tank, it can degrade the quality of your oil and could mean you need a costly tank clean.
- Fuel line blockages: In freezing conditions, water in fuel can solidify and block fuel lines.
TankSponge Eco is an easy, environmentally-friendly solution for removing water, maintaining fuel quality, and preventing tank sludge build-up. Helping you to avoid serious problems with your tank, and associated costs, it’s our top tip for extending the life of your tank and keeping repair costs down.
TankSponge Eco is super simple
How does TankSponge Eco work?
It’s super simple! The TankSponge Eco is made up of a specially moulded cage (made from recycled plastic) and replaceable inserts which will each soak up 700ml of contaminated water from the bottom of your oil tank, leaving your heating oil untouched and ready to use. They’re easily placed inside a fuel tank and come with a string that can be attached to the outside of the tank for easy removal.
To keep your tank at the peak of performance, we advise checking your sponge once a quarter. Once it’s full, just remove the sponge from the cage and replace it with a new one. No hassle, no mess — just peace of mind knowing your oil is protected.
We know protecting your home is a priority, but protecting the planet matters too. That’s why the TankSponge Eco is made with sustainable materials, so you can take care of your heating system without harming the environment.

We’ll help you keep your tank healthy
Your home deserves a heating system that’s reliable and efficient, and maintaining your oil tank is a key part of making that happen. We’re passionate about providing practical, affordable solutions to protect your heating oil supply, and our TankSponge Eco is no exception.
Ready to keep your tank in tip-top shape? Contact our team today to learn more about TankSponge Eco or to place your order.
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