CPO PRACTICE TEST EXAM 2025 QUESTIONS WITH COMPLETE SOLUTIONS.

What is the ideal range for pH? - ANSWER7.4-7.6 How often should you clean or backwash your filter? - ANSWERWhen the pressure gauge reads 8 to 10 psi above the clean starting pressure Water dripping from where the motor attaches to the pump is an indication of what? - ANSWERPump seal failure If you did not winterize your pool, what is the best method of preventing equipment damage during the threat of a hard freeze? - ANSWERRun your pool pump during the hours of the hard freeze What should the pump lid o-ring should be lubricated with? - ANSWERA silicone or Teflon based lubricant What is the best method of algae prevention? - ANSWERBrushing the pool walls and floor on a regular basis Which chemical is used to raise the total alkalinity? - ANSWERBaking Soda (Sodium Bicarbonate) What does it mean when a pool has "that chlorine smell"? - ANSWERThe pool probably needs more chlorine - might be time to shock What day is National Swimming Pool day? - ANSWERJuly 11th What does muriatic acid disassociate into when added to water? - ANSWERH & Cl- (Hydrogen & Chloride) Which is an important step in preparation for a major storm? - ANSWERRaise your chlorine level and make sure your chemistry is in balance What is the correct level for the water in the pool? - ANSWERFill pool to mid-point of the skimmer