RO questions...

[Reeferon]

What is the ideal ppm reading of the water that will be fed into the TFC membrane??

You know after it passes through the the sediment filter and carbon filter.

Bit of a difficult question. I want to know wether or not to add another stage to my water filter or not.

 

[rubikcube]

0 ppm. You'd probably never have to replace any of the components, lol.

 

[AZDesertRat]

There really is no such thing as the ideal tap water TDS going into an RO membrane. I can tell you the national average for TDS is about 250 ppm TDS. Some parts of the country have lower and others much higher like here in Phoenix where it is about 800 most of the time.
I am not sure what you are trying to accomplish since prefilters and carbons have almost not effect on TDS. They are there to filter out TSS, Total Suspended Solids or silt and sediment for the prefilter and CL2, or chlorine residual disinfectant and VOCs or volatile organic chemicals. TDS is total disolved solids or things much smaller than a prefilter will filter out. Adding additional filters will not help TDS in any way.

 

[Buckeye Hydro]

Re: RO questions...

<a href=showthread.php?s=&postid=9592111#post9592111 target=_blank>Originally posted</a> by Reeferon
What is the ideal ppm reading of the water that will be fed into the TFC membrane??

You know after it passes through the the sediment filter and carbon filter.

Bit of a difficult question. I want to know wether or not to add another stage to my water filter or not.

Bottomline - the lower the better.

Adding additional prefilters, as mentioned above, won't lower the tds in the water delivered to the membrane.

Russ @ BFS