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					Originally Posted by rocco134  I am also new to RO/DI use. I just got my unit today. I have a quick question. Sorry to leach of your leach of your post salty. 
 Is the efficiency of the unit (waste: product) temperature sensitive (i.e higher water temp = less waste)? my unit is rated at 50gpd but i know that is based on ideal conditions (60psi and 77'F).
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 there is a easy way to improve efficiency, u can add a another membrane and produce double what your making and still use the original waste water amount.  understand?
as for adding chems, i am using the GHL profilux doser with the balling salts. I have no problem with calcium its just keeping up with mag, and alk..