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22 Cards in this Set
- Front
- Back
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3 characteristics of water quality |
Physical Biological Chemical |
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5 physical characteristics |
Temperature Taste Colour Odour Turbidity |
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Biological characteristic |
Bacteria |
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Chemical characteristics |
Dissolvable substance in water |
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Where should a water sample be taken |
From a near point away from the source |
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What’s is the most common impurity in water |
Hardness followed by iron |
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What’s used to treat hard water |
Ion exchange |
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A softener treats how much iron |
Small amounts |
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Manganese green sand and chemical free are what type of |
Oxidizing filter |
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What is used in a manganese greensand filter |
Potassium per manganate |
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Max recommended amount of iron |
0.3 ppm |
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What can treat any amount of iron |
Chlorination followed by filtration |
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Polyphosphate is used for |
Clear water iron/ ferrous iron |
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PH range for pitiable water |
6.5-8.5 |
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PH level of rain water |
5.6 |
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What is used to remove H2S |
Actuated carbon filter |
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A hwt should not exceed |
140•F |
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Regeneration process happens |
Every 3 days |
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Most common media is |
Calcium carbonate |
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Piping downstream of the ro system must be |
Plastic pipe |
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Free board does what |
Allowed lift on back wash cycle |
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Upflow brining provides |
Better reserve in the tank |
