parallel - answer valves are open if handle is ______ to the pipe
pH - answer how acidic or basic a solution (pool water) is
60 to 180 - answer acceptable range of Total Alkalinity in a pool
7.2 to 7.8 - answer acceptable range of pH in a pool
150 to 400 - answer acceptable range of calcium hardness in a pool
1500 - answer maximum reading for total dissolved solids (TDS)
7.5 - answer pH of a human eye
15 minutes - answer maximum time someone should spend in a spa
8 hours - answer maximum turnover rate for a main pool
2 hours - answer maximum turnover rate for a wading pool
30 minutes - answer maximum turnover rate for a spa
104 - answer maximum temperature for a spa is _____ degrees
-0.5 - +0.5 - answer acceptable range for the Langelier Saturation Index
flow meter - answer instrument that measures how fast the water is returning to the
pool after it has been cleaned
parts per million - answer the rate of flow is measured in...
effluent line - answer other name for return line
DPD #1 and #2 - answer to measure free available chlorine the reagents should be...
floculent - answer filter aid that makes small dirt bigger
cyanuric acid - answer chemical that stabilizes chlorine against ultraviolet light of the
sun
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