The process comprises introducing a hydrosulfide reagent into the fixer solution, which contains silver, to precipitate silver sulfide while maintaining {TAIL ~ pH and thiosulfate levels} in {HEAD ~ the fixer} to allow for reuse 
The process comprises introducing a hydrosulfide reagent into the fixer solution , which contains silver , to precipitate silver sulfide while maintaining { TAIL ~ pH and thiosulfate levels } in { HEAD ~ the fixer } to allow for reuse
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH