Lift the cover from the grill, clean the inside edge of the frame from concrete residues, soils, etc..
Place the siphon within the girglia exhaust in support with the entire surface perimeter flange on the appropriate port siphon.
Should there be a necessitàdi hold light debris can enter the appropriate accessory placing it directly into the siphon.
Replace the lid of the grill into place, making sure that is on the same plane of the frame.
Important: We recommend a periodic maintenance (emptying from soil, leaves, etc..) To a better functioning of the siphon