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Chapter 3
devices and methods
kinds of materials used to make the Easy Fresh Water.
1. cylinder 5 liters of water, 2 leaves.
2. chassis color
. 3 hair
. 4 Stockings
5. grating
6. disc index futures.
7. 0.5 inch PVC pipe
8. valve closed - open water.
9. Bellows
10. trays, aluminum
11. Clay 12. Stand student
desk. 13th. A simple filter stone, gravel, sand, activated carbon and synthetic fiber.
device used to measure water quality.
1. Thermometer
2. The turbidity tube
3. Paper pH
4. kits for DO, BOD.
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