34 SportsTurf | September 2014 www.sportsturfonline.com
Irrigation & Drainage | By Jason Koester, CGCS
G
rinnell College completed phase two of
an athletics building construction project
in late August of 2010. The phase two
construction consisted of an Olympic size
swimming pool and an indoor field house with athletic
offices attached. Phase one, Darby Gymnasium (home
of the record-breaking Grinnell men's basketball team),
was completed in 2005. A unique aspect of the phase
two project included a rain water collection system from
the large field house roof and surroundings, which feeds
a 20,000-gallon collection tank. Condensate water is
also harvested from the air handling system in the field
house, which provides a large amount of clean water for
the collection tank. The water collected is used for toilets
How one facIlITy
collecTS waTer
The water from
the collection tank
is filtered on the
way out of the tank
before reaching the
pumping system..
When the tank water level reaches
91 inches, the excess water is diverted
to the storm sewer system that feeds the
Grinnell Country Club ponds.