Said tank has an internal float which, according to the level of the collected product, operates {HEAD ~ a cable} which is connected to {TAIL ~ the funnel platform buoys} to ensure that it is at times underwater and at others above the water level, thereby preventing the tank from filling completely 
is connected to
Said tank has an internal float which , according to the level of the collected product , operates { HEAD ~ a cable } which is connected to { TAIL ~ the funnel platform buoys } to ensure that it is at times underwater and at others above the water level , thereby preventing the tank from filling completely
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH