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4-2
BACKWASHING FREQUENCY SCHEDULES
MODEL: 3MAPPM150
Persons in
Family
IRON CONTENT (PPM)
2
4
6
8
10
1
1
1
1
1
1
2
1
1
1
1
1
3
1
1
1
1
2
4
1
1
1
2
2
5
1
1
1
2
2
6
1
1
2
2
3
MODEL: 3MAPPM200
Persons in
Family
IRON CONTENT (PPM)
2
4
6
8
10
1
1
1
1
1
1
2
1
1
1
1
1
3
1
1
1
1
1
4
1
1
1
1
1
5
1
1
1
2
2
6
1
1
2
2
2
7
1
1
2
2
2
8
1
1
2
2
2
9
1
2
2
3
3
10
1
2
2
3
3
Summary of Contents for 3MAPPM150
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