The descending cable is guided along with the first flexible pipe into the first tank to be mounted on a pulley secured to the bottom of the first tank and to be fixed to the bottom of {HEAD ~ a first float} in {TAIL ~ the first tank} 
in
The descending cable is guided along with the first flexible pipe into the first tank to be mounted on a pulley secured to the bottom of the first tank and to be fixed to the bottom of { HEAD ~ a first float } in { TAIL ~ the first tank }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL