View Single Post
  #5  
Old 03-06-2010, 11:14 PM
mark's Avatar
mark mark is offline
Member
 
Join Date: Nov 2002
Location: Edmonton AB
Posts: 4,212
mark is on a distinguished road
Default

what the TDS is after the unit (before the di) is the important number.

With the reject rates of membranes being 90-99% depending on type, the output should be at least 20.
__________________
my tank
Reply With Quote