An electrical power cord connects {HEAD ~ the unit} to {TAIL ~ a power source} to power the pumps and jets, while hoses provide water for filling and draining the tub 
to
An electrical power cord connects { HEAD ~ the unit } to { TAIL ~ a power source } to power the pumps and jets , while hoses provide water for filling and draining the tub
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH