This invention further embraces a filter device for {TAIL ~ liquids}, wherein a bottom of {HEAD ~ the liquid feeding compartment} is higher than a bottom of the liquid receiving compartment 
This invention further embraces a filter device for { TAIL ~ liquids } , wherein a bottom of { HEAD ~ the liquid feeding compartment } is higher than a bottom of the liquid receiving compartment
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH