Water will form in any oil storage tank. It is perfectly normal and occurs as a result of the tank warming up during the day and then cooling at night. In single skin oil tanks it will collect in the base of the tank; in bunded oil tanks it may additionally collect between the inner and outer tanks.
All bunded oil tanks should be inspected annually for the presence of water found to be present either inside the oil tank or in the case of bunded oil tanks, between the inner and outer tank. Failure to remove any condensation may result in fuel contamination and irreparable product damage.
Condensation can be removed by most oil tank installers, technicians and most fuel distributors. We can recommend an OFTEC-certified tank installer tank installer for you as we work very closely with a number of installers. This allows us to recommend only the best and most reliable installer to our customers.