Troubleshooting Filters – Answer Key

1. Troubleshooting filters requires a knowledge of devices which indicate pressure and flow.

a. true

b. false

2. The gauge which records the pressure within the filter system is

a. influent gauge

b. effluent gauge

3. The indicator which shows the gallons per minute running through the return line is

a. flow indicator

b. pressure gauge

4. If the pressure gauge is reading high, the filter is

a. clean

b. dirty

c. no issue

5. Lack of backwashing will result in

a. poor water clarity

b. reduction in flow

c. both of the above

6. If the pressure gauge stays low, there is a blockage on the suction side of the pump

a. true

b. false

7. When the differential between the influent and effluent gauge reads 8 to 10 psi, it is time to

a. clean the filter

b. clean the hair & line strainer basket

8. The needle within the pressure gauge is vibrating or jumping incates,

a. poor flow

b. high flow

c. air in the filter or pump

9. The flowmeter is registering lower than normal, this is an indication that

a. the filter needs to be backwashed

b. the pump impeller is obstructed

c. both of the above

10. When there is a change in the daily logs or routine, the operator should take immediate action to determine the cause in the change.

a. true

b. false

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  5. Electrolytic Chlorine Generators – Answer Key

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