water treatment

Question 1

what are the symptoms of hard water

Answer 1

spotting on dishes and glassware, scaling on inside of water heater, clothing looks gray and dingey

Question 2

what is the cause for yellow, brown or rusty stains on plumbing fixtures

Answer 2

clear water iron (ferrous water) measuring 0.3ppm or more

Question 3

what are the symptoms of red water iron

Answer 3

yellow to rust color

Question 4

what are the symptoms of bacterial iron

Answer 4

clumps and balls that may foul plumbing lines

Question 5

what is the problem if there is a rotten egg state or odor and plumbing lines are black

Answer 5

high amount of hydrogen sulfide

Question 6

what is the problem when there is blue/green or rusty stains and corrosion of plumbing fixtures. Also pin wholes in copper plumbing lines

Answer 6

acid water

Question 7

what is the called when there is sand, or cloudy water

Answer 7

turbidity

Question 8

what is the result of decaying vegative matter

Answer 8

tannins

yellow or brown tint or cast in water supply

Question 9

what ph level is neutral

Answer 9

7.0

Question 10

if water measures 6.0 on the ph scale it is

Answer 10

slightly acidic

Question 11

if water measures 14.0 on the ph scale it is

Answer 11

extremely alkaline

Question 12

what is included in a water analysis test

Answer 12

hardness
iron
manganese
ph
tds

Question 13

if water has a ph reading of 6.5 or lower that would mean

Answer 13

the water is corrosive

Question 14

what does gpg stand for in relation to hard and soft water

Answer 14

grains per gallon

Question 15

if water has less than 1.0gpg it is

Answer 15

soft

Question 16

if water has more than 1.0gpg it is

Answer 16

hard

Question 17

if water has more than 10.5 gpg

Answer 17

it is very hard

Question 18

what is the most common way of of correcting hard water

Answer 18

ion exchange

Question 19

what is in the ion exchange that corrects hardnes

Answer 19

resin beads that can be damage by freezing,boiling, or drying out

Question 20

what happens in an ion exchanger

Answer 20

the sodium ions are exchanged for magnesium and calcium ions

Question 21

what is regeneration

Answer 21

replacing the sodium ions in the ion exchanger

Question 22

what is multi-media filtration

Answer 22

also know as turbidity filter

silt and dirt, that give water a cloudy appearance are trapped in the filter bed

Question 23

what is activated carbon filtration

Answer 23

elemental carbon whose particles have a large surface area with high adsorptive qualities

Question 24

what is activated carbon effective for

Answer 24

adsorbing dissolved organic compounds such as decayed vegetation and run-off which causes unpleasant taste

Question 25

what is the most effective for dechlorinization

Answer 25

granular activated carbon

Question 26

what is used in chloronation systems to remove tastes of chlorine

Answer 26

activated carbon filterrs

Question 27

what is the purpose of a neutralizing filter

Answer 27

raises the ph of acidic water and neutralizes its acidic characteristics

Question 28

if you have a system where hydrogen sulfide exceeds 3.0ppm what do you need

Answer 28

a chlorination system

Question 29

what what ph will iron oxidize in water

Answer 29

7.0