At what point on the TDS meter....

TrojanScott · 09/06/2007, 04:54 PM

do you change your filter material on your RO unit? Just wondering.....

Remember when it was at dead ZERO, now about 4 or 5. Seems like nothing, but has me wondering.

Buckeye Hydro · 09/08/2007, 02:39 PM

Your prefilters don't affect tds levels, so think only about your membrane and DI resin.

When membranes go bad you'll see a reduction in the amount of purified water they produce, or an increase in the tds of your RO water.

Replace your DI resin when the DI water climbs to about 2 or 3 ppm.

Russ @ BFS

09/06/2007, 04:54 PM	#1
TrojanScott Registered Member Join Date: Feb 2005 Location: Lake Forest, CA Posts: 2,229	At what point on the TDS meter.... do you change your filter material on your RO unit? Just wondering..... Remember when it was at dead ZERO, now about 4 or 5. Seems like nothing, but has me wondering.

09/08/2007, 02:39 PM	#2
Buckeye Hydro .Registered Member Join Date: Sep 2006 Location: Cincinnati, Ohio Posts: 4,857	Your prefilters don't affect tds levels, so think only about your membrane and DI resin. When membranes go bad you'll see a reduction in the amount of purified water they produce, or an increase in the tds of your RO water. Replace your DI resin when the DI water climbs to about 2 or 3 ppm. Russ @ BFS