ADD CHEMICALS TO WATER; DO NOT ADD WATER TO CHEMICALS - correct
answer--...
Adding bromine to a pool or spa - correct answer--lowers pH
Adding chlorine to the pool to the pool - correct answer--raises the pH
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Algae forms because of - correct answer--poor circulation and/or low chlorine levels
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As the dirt in the filter accumulates the flow of water going through the filter -
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correct answer--decreases while filter pressure increases
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Breakeven point level of chlorine at a pool you must have - correct answer--
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10 times the level of chloramines
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CDC states that the number of accidents related to swimming are: - correct answer--
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140,000
Channeling means - correct answer-- 7 7 7 7
over the course of time the filter and sand is bad and deep channels are formed in the sand
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causing it to filter poorly 7 7 7 7
Electrical system at pool must have - correct answer--GFI's
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Filtration is the - correct answer--physical process of water moving through the system.
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Flow Rate= - correct answer--
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number of gallons divided by hours of turnover (multiply hours by 60 to get minutes)
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Flow Rate= - correct answer--Turnover Rate/Filter Media Rate
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formula volume is - correct answer--
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length x width by depth by 7.48 (num. x num. x num. x 7.48)
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High speed sand filters are able to filter how much water per minute per square foot? -
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correct answer--15-20
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How do you lower the Calcium Hardness Level? - correct answer--
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Drain water out and add fresh water. Dilute the water.
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Ideal bromine level in a pool and spa is: - correct answer--3ppm to 6ppm
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