second free floating check valve means disposed in {TAIL ~ said inner tube} between the ends of said outer tube which closes in delayed fashion for allowing {HEAD ~ controlled backflow} such that the liquid level in said detergent container tends to equalize with the liquid level in said water container 
second free floating check valve means disposed in { TAIL ~ said inner tube } between the ends of said outer tube which closes in delayed fashion for allowing { HEAD ~ controlled backflow } such that the liquid level in said detergent container tends to equalize with the liquid level in said water container
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH