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22 Cards in this Set

  • Front
  • Back

3 characteristics of water quality

Physical


Biological


Chemical

5 physical characteristics

Temperature


Taste


Colour


Odour


Turbidity

Biological characteristic

Bacteria

Chemical characteristics

Dissolvable substance in water

Where should a water sample be taken

From a near point away from the source

What’s is the most common impurity in water

Hardness followed by iron

What’s used to treat hard water

Ion exchange

A softener treats how much iron

Small amounts

Manganese green sand and chemical free are what type of

Oxidizing filter

What is used in a manganese greensand filter

Potassium per manganate

Max recommended amount of iron

0.3 ppm

What can treat any amount of iron

Chlorination followed by filtration

Polyphosphate is used for

Clear water iron/ ferrous iron

PH range for pitiable water

6.5-8.5

PH level of rain water

5.6

What is used to remove H2S

Actuated carbon filter

A hwt should not exceed

140•F

Regeneration process happens

Every 3 days

Most common media is

Calcium carbonate

Piping downstream of the ro system must be

Plastic pipe

Free board does what

Allowed lift on back wash cycle

Upflow brining provides

Better reserve in the tank