Question 746011
You want an answer in ( gallons / hr ), so
in terms of just units:
( quarts / sec ) x ( gallons / quart ) x ( sec / min ) x ( min / hr ) = ( gallons / hr )
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This is easier to see if you pull out all the like units:
( quarts / quarts ) x ( sec/ sec ) x ( min / min ) x ( gallons / hr ) = ( gallons / hr )
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Using your numbers:
{{{ ( 1/2.2 )*( 1/4 )*( 60/1 )*( 60/1 ) }}}
{{{ 3600 / ( 2.2*4 ) = 409.1 }}}
To the nearest 100 GPH, you need a 400 GPH pump