The formation of the gas can affect the precipitation of {TAIL ~ silver} from the solution and also detracts from {HEAD ~ the overall efficiency} of treating the fixer solution 
The formation of the gas can affect the precipitation of { TAIL ~ silver } from the solution and also detracts from { HEAD ~ the overall efficiency } of treating the fixer solution
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH