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1. Reject pump feeds paper stock into slush sorter.
2. Paper stock that has passed through slush sorter is fed into the following process.
3. Rejects are discharged intermittently.
4. In automatic operation, the inlet and the outlet of slush sorter close. Then white water is put inside under pressure to for feed rejects up to drum screen.
5. Water separated in drum screen returns to the pulper.
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