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	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	201, 1st stage sediment filter (replace every 6-12 months)

View Cart	$732.00

1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	201, 1st stage sediment filter (replace every 6-12 months)

View Cart	$732.00