TDS reading ppm of the filtered water:

In time, when the DI resin gets exhausted, they will start to get smaller in size and change from light green or brown color to dark brown, almost black color. You must test the tap water going in, the water coming out of the membrane, and the DI water. All references to this information is found in the installation manual and our website. You will need to compare the three ppm numbers to each other. The water coming out of the membrane should be about 90% rejection from the tap. If it is not, it sounds like you need to replace your membrane.

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1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	719, Drain Saddle Clamp / Valve
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	741-38, Diverter Valve for RO DI Water Systems

View Cart	$1,000.75

1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	719, Drain Saddle Clamp / Valve
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR104H
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	741-38, Diverter Valve for RO DI Water Systems

View Cart	$1,000.75