Looking for RO/DI filter advice

Tonynlo · 03/29/2010, 04:06 PM

I have a 4 stage unit and I need to change my filters for the first time. I am confused about which are the most beneficial. Can anybody explain the 1 micron and 5 micron filter difference? Using the BRS build your own unit as a guide to which filters I need... What are the most beneficial filters to use in conjunction with a 4 stage unit?

The options are:

Stage 1:
1 Micron Sediment Filter
5 Micron Sediment Filter

Stage 2:
1 Micron Sediment Filter
5 Micron Sediment Filter
1 Micron Carbon Block (cto/2)
1 Micron Carbon Block (+1)
Catalytic Carbon Cartridge
Chlorplus 1 Micron Carbon Block

Stage 3:
1 Micron Carbon Block (cto/2)
1 Micron Carbon Block (+1)
Deionization Resin (color changing)
Chlorplus 1 Micron Carbon Block

Stage 4 (membrane):
Different gallon per day selections

Squint · 03/29/2010, 06:44 PM

Well, with only 3 housings, if you have chloramine you're going to need at least two carbon cartridges and one DI (I have 5 and 4, respectively).

Microns are the size of the particles you could reasonably expect the filter to trap.

Indermark · 03/29/2010, 08:12 PM

you want stage one to be a sediment. Stage two a carbon block to absorb chlorine. Stage three is always your RO membrane. Stage Four is your water polisher. This is where DI resin will be. DI will help produce 0 TDS water. Without DI your are gonna get water between 10-25 TDS.

the smaller your micron for your sediment filter the quicker it will clog so it will need to be replaced sooner.

JasonTaylor · 03/30/2010, 07:13 PM

Select the 1 Micron Sediment Filter instead of the 5, since it is cheap and protects the other filters.

03/29/2010, 04:06 PM	#1
Tonynlo Registered Member Join Date: Jul 2008 Location: Spencerport, NY Posts: 535	Looking for RO/DI filter advice I have a 4 stage unit and I need to change my filters for the first time. I am confused about which are the most beneficial. Can anybody explain the 1 micron and 5 micron filter difference? Using the BRS build your own unit as a guide to which filters I need... What are the most beneficial filters to use in conjunction with a 4 stage unit? The options are: Stage 1: 1 Micron Sediment Filter 5 Micron Sediment Filter Stage 2: 1 Micron Sediment Filter 5 Micron Sediment Filter 1 Micron Carbon Block (cto/2) 1 Micron Carbon Block (+1) Catalytic Carbon Cartridge Chlorplus 1 Micron Carbon Block Stage 3: 1 Micron Carbon Block (cto/2) 1 Micron Carbon Block (+1) Deionization Resin (color changing) Chlorplus 1 Micron Carbon Block Stage 4 (membrane): Different gallon per day selections __________________ Do what you can do, that's all you can do. 125 Gallon in wall system.

03/29/2010, 06:44 PM	#2
Squint Registered Member Join Date: Nov 2002 Posts: 67	Well, with only 3 housings, if you have chloramine you're going to need at least two carbon cartridges and one DI (I have 5 and 4, respectively). Microns are the size of the particles you could reasonably expect the filter to trap.

03/29/2010, 08:12 PM	#3
Indermark Registered Member Join Date: Mar 2006 Location: Troy, Illinois Posts: 670	you want stage one to be a sediment. Stage two a carbon block to absorb chlorine. Stage three is always your RO membrane. Stage Four is your water polisher. This is where DI resin will be. DI will help produce 0 TDS water. Without DI your are gonna get water between 10-25 TDS. the smaller your micron for your sediment filter the quicker it will clog so it will need to be replaced sooner.

03/30/2010, 07:13 PM	#4
JasonTaylor Registered Member Join Date: Mar 2010 Posts: 12	Select the 1 Micron Sediment Filter instead of the 5, since it is cheap and protects the other filters.