{HEAD ~ The error state} is determined for {TAIL ~ cases} where there is no change in water level after supplying water for a predetermined time 
is determined for
{ HEAD ~ The error state } is determined for { TAIL ~ cases } where there is no change in water level after supplying water for a predetermined time
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH