Prior to any fuel switch, and for good environmental practice, tanks should routinely be visually inspected for defects such as distortion. Tanks with secondary containment are preferred for all applications to minimise any risk of fuel entering a water course following a fuel spill or leak. Plastic tanks should be checked for cracks, surface discolouration or crazing, and steel checked and protected from rusting. All tanks should be appropriately supported.
All fittings and equipment connected to a tank should be checked for correct operation. In particular, there should be appropriate filling and venting arrangements and an operable and safe means of isolation for the oil supply pipe, as near . . .
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