Cutting Commercial Costs  February 02, 2012  New RO elements can
lower total water costs  Commercial reverse osmosis (RO) systems
encompass a wide variety of applications. Some applications,
such as metal plating or boiler feed water, require pure water
with low dissolved solids. Other applications, in which a higher
dissolved solids content is acceptable, such as car wash or
drinking water applications, need to produce as much water as
possible, or just enough water at the lowest cost possible.
Each of these categories presents unique challenges to
commercial OEMs to configure systems that reduce the total water
cost (TWC) to their customers.  Reducing Chemical Use
Commercial systems sold into high purity water applications
usually comprise of pretreatment filters, followed by RO
filters, followed by polishing filters. The pretreatment filters
are the standard sediment and carbon filters used in most
systems. Sediment filters remove suspended solids that would
plug the RO filter, and carbon filters remove