 Crown Fountain has both slits and a grate for drainage ( pictured above right ) to drain the 11 @,@ 520 US gal ( 43 @,@ 608 l ; 9 @,@ 592 imp gal ) of water per minute . When the videos are not on the front of the tower , water cascades down each of the facades . The water is filtered , pumped and recirculated through the fountain . Dual pump rooms below each tower draw water from a reservoir beneath the reflecting pool . There are 12 mechanical pumps that are regulated from a control room in the underground parking garage beneath the south tower of the fountain . The water in the reflecting pool has a depth of about 0 @.@ 33 millimetres ( 0 @.@ 013 in ) . 
 Crown Fountain <a href='uninflect' title='1'><mark>has</mark></a> both slits and a grate for drainage ( pictured above right ) to drain the 11 @,@ 520 US gal ( 43 @,@ 608 l ; 9 @,@ 592 imp gal ) of water per minute . When the videos <a href='negative_concord' title='2'><mark>are</mark></a> <a href='negative_concord' title='3'><mark>not</mark></a>on <a href='None' title='4'><mark>the</mark></a><a href='negative_concord' title='5'><mark>front</mark></a> of the tower , water <a href='uninflect' title='6'><mark>cascades</mark></a> down each of the facades . The water is filtered , pumped and recirculated through the fountain . Dual pump rooms below each tower draw water from a reservoir beneath the reflecting pool . <a href='dey_it' title='7'><mark>There</mark></a> are 12 mechanical pumps <a href='null_relcl' title='8'><mark>that</mark></a>are regulated from a control room in the underground parking garage beneath the south tower of the fountain . The water in the reflecting pool <a href='got' title='9'><mark>has</mark></a> a depth of about 0 @.@ 33 millimetres ( 0 @.@ 013 in ) . 
Crown Fountain have both slits and a grate fa drainage ( pictured above ryte ) to drain the 11 @,@ 520 US gal ( 43 @,@ 608 l ; 9 @,@ 592 imp gal ) of water per minute . When the videos ain't on no front of the tower , water cascade down each of da facades . The water is filtered , pumped and recirculated thru tdafountain . Dual pump rooms below each tower draw water from a reservoir beneath the reflecting pool . It is 12 mechanical pumps are regulated from a control room in thdanderground parkin garage beneath thedauth tower of the fountain . The water in the reflecting pool got a depth of bout 0 @.@ 33 millimetres ( 0 @.@ 013 in ) .