This single use sample of water finding paste detects the presence of water in fuel tanks. The paste is golden brown in colour but on contact with water it will turn bright red.
Oil and water do not mix. Oil is lighter than water so the water will always drop down in a layer at the bottom of the tank. If you smear some paste onto a dipstick and lower the stick to the bottom of your oil tank you will see if water is a problem.
We recommend a water-gripper if you detect less than an inch of water or call Pat on 087-2364500 to pump out a larger quantity before it causes problems to your burner.