... redundant SO42- deposit, adjust plating solution to routine level, If much deposit exists in the bath for ... , then take out the clear solution from the top level, adjust CrO3 and H2SO4 to the routine, then ... experience 1000Kilolitre of bath, two-shifts work replenishing level: 0.2 ~ 0.3kg/month more or less ... hours, take out the clear solution from the top level, adjust H2SO4 and CrO3 content , then add ...