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HIGH-RATE GRANULAR MEDIA FILTRATION 8,27

PRECAST WHEELER BOTFOM

v ' ~'" ~ v" V

5 LARGE AND NINE SMALL
SPHERES IN EACH DEPRESSION
(TYPICAL MONOLITHIC WHEELER BOTTOM)
~'~"!~T# ~ ':~ :~'~t ~ HOPPERS WiTH GRAVEL
:;~;~.;~ ~.v;~ ~ ;,.
' " ' 'b' IP r/ '
ORCELAIN SPHERES
PLAN
~'~o~o~. " . "~
' SUPPORTING PIER

ARRANGEMENT OF SPHERES, SAND AND GRAVEL
MONOLITHIC WHEELER BOTTOM
FIGURE 8.16 Concrete wheeler bottom with gravel support. (Source: Roberts Water Technologies,
Inc.)