RODI reading 13 ppm

just added a new tlc100 membrane. before water was reading 22 ppm. added this one and now I am reading 13 ppm after 10 mins of letting the system run. will it increase the longer I run the system? Also I replaced sediment filter and carbon block one week ago. I only have one carbon block btw. tap water reads 350. No DI resin hooked up yet. is 13 ppm good? from what I was seeing systems should read 1-2 before the DI resin?
Sounds like it doing its thing to me. 96% rejection is what you are getting and thats pretty good. Keep in mind rejection rate is dependent on the membrane and feed pressure.
 
(3/350) * 100 = 0.8

So less than 1% of the TDS is making it through the RO, and over 99% is being sent to the concentrate ("waste"). 99%+ rejection (assuming the TDS reading is accurate) - that's as good as it gets.

Russ
 
(3/350) * 100 = 0.8

So less than 1% of the TDS is making it through the RO, and over 99% is being sent to the concentrate ("waste"). 99%+ rejection (assuming the TDS reading is accurate) - that's as good as it gets.

Russ
next question I was going to add a second DI can and can for carbon block. I have watched a bunch of vids and read on forums. BRS sells 5 micron and also 1 micron. 1 micron is better? but then people on forums are saying they us all kinds of ****. .2 micron .5 micron and what not. what is good? I am going to have two cans for carbon. one of the blocks is new and I am pretty sure is 5 micron. what do you guys recommend? also what order would the micron need to be in? are there pressure drops on gauge associated with this?
 
First, make sure that the micron pore size on the sediment filter is about equal to, or smaller than the pore size on any of the carbon blocks.
Once you do that, then install the carbon blocks with the highest capacity first, and lower capacity second (regardless of pore size).

Yes - you'll always lose some pressure with every prefilter you add.

Are you on city water? Does it contain chloramines? If yes, then our Chloramine Special RODI System comes with this prefilter set up:
1 mic sediment filter
Chloraguard Carbon Block
Chlorine Grabber carbon Block.

If you are on chlorinated city water: 1 mic sed, Chlorine Grabber, Workman Carbon Block

If you are on well water: 5 mic sediment, 1 mic sediment, Workman Carbon Block

Russ
 
sediment filter is 5 micron
First, make sure that the micron pore size on the sediment filter is about equal to, or smaller than the pore size on any of the carbon blocks.
Once you do that, then install the carbon blocks with the highest capacity first, and lower capacity second (regardless of pore size).

Yes - you'll always lose some pressure with every prefilter you add.

Are you on city water? Does it contain chloramines? If yes, then our Chloramine Special RODI System comes with this prefilter set up:
1 mic sediment filter
Chloraguard Carbon Block
Chlorine Grabber carbon Block.

If you are on chlorinated city water: 1 mic sed, Chlorine Grabber, Workman Carbon Block

If you are on well water: 5 mic sediment, 1 mic sediment, Workman Carbon Block

Russ
sediment filter is 5 micron
 
I'd seen that... That's not the report we're hunting for. As it's a smaller town, they may not have it online. Give them a call and ask them what they use as a disinfectant: 1) chlorine, or 2) chloramine?

Russ
 
I'd seen that... That's not the report we're hunting for. As it's a smaller town, they may not have it online. Give them a call and ask them what they use as a disinfectant: 1) chlorine, or 2) chloramine?

Russ
Ok I am going to be out of town I will not be able to get back on till around wednesday.
 

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