a first duct extending from said first inlet port and terminating in said interior of said container below a surface of said first liquid reservoir; whereby {HEAD ~ said first liquid reservoir} establishes {TAIL ~ a first liquid seal} between said first gaseous environment and said external gaseous environment 
establishes
a first duct extending from said first inlet port and terminating in said interior of said container below a surface of said first liquid reservoir ; whereby { HEAD ~ said first liquid reservoir } establishes { TAIL ~ a first liquid seal } between said first gaseous environment and said external gaseous environment
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH