DIABLO line of fixed tanks is made of recyclable HDPE material, consisting of a full range of 10 models complying with international standards. DIABLO can be used for either fresh or waste water. The advantage of this line of tanks is the ‘EASY SWITCH’ plate, which can be purchased separately based on the use of the tank, and is manually interchangeable. The hatch used for fresh water is blue and the one used for waste water is brown. It is secured and seated by rotation of the piece itself and blocked into position by means of a locking pin that prevents loosening. To clean the tank just lift the locking pin and remove the hatch by unscrewing it.