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