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2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x AUC-0604 Union Connector 3/8 to 1/4" OD, Quick Connect
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x ATU-0606 TEE Union Connector 3/8" Quick Connect
1 x 719, Drain Saddle Clamp / Valve
2 x 723, Feed Water Adapter with Ball Valve
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 1070, LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SV-24DC-14, Solenoid Valve 1/4" plastic, 24V DC
2 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
2 x AHUC-0606 Inline Ball Hand Valve Union 3/8" tubing Quick Connect
2 x 741-38, Diverter Valve for RO DI Water Systems
2 x AME-0406 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 3/8 NPTF
1 x FRQ600, Flow Restrictor 550 to 600ML / min
1 x Check Valve Elbow Type
1 x FRQ420, Flow Restrictor 420ML / min
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 706, Membrane Filter Casing Housing Assembly
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SV-110AC-14, Solenoid Valve 1/4" plastic, 110V AC
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KT-103, Optional Manual Membrane Flush Valve
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-KOR24, O-RING FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 531, SMALL RO Storage Pressure Tank 2 Gallon 2G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x FRQ200, Flow Restrictor 200ML / min
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 701C, Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x AHUC-0707 Inline Ball Hand Valve Union 1/2" tubing Quick Connect
2 x CBV-0404, Tank Ball Valve to 1/4 tubing
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x AME-0402 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 1/8 NPTF
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x ATU-0404 TEE Union Connector 1/4" quarter inch Quick Connect
1 x 745, Garden Hose / Laundry Hose Adapter for RO/DI systems
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-38, KSD Solenoid Valve 3/8" brass, 24V AC
2 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x AUC-0404 Union Connector 1/4" quarter inch, Quick Connect
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x B2012, 20" Long Slim Big Blue Filter Cartridge Housing 260 322
1 x AME-0404 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 1/4 NPTF
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x MK300, Maintenance kit for RO535, RO435, RO545
1 x Y3414CH, Garden Hose Y Adapter Valve Zinc coated 1/4" quick conn
1 x 214, Clear Inline DI Filter Cartridge Empty Case
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x MK225, Maintenance kit for Honeywell RO9100 and Filtercold RO-5,
1 x Y3414PL, Garden Hose Y Adapter Plastic Valve 1/4" quick
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6

View Cart$1,069.21
Specials Log InCreate Account Checkout  Shopping Cart78 item(s)
2 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x AUC-0604 Union Connector 3/8 to 1/4" OD, Quick Connect
1 x FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x ATU-0606 TEE Union Connector 3/8" Quick Connect
1 x 719, Drain Saddle Clamp / Valve
2 x 723, Feed Water Adapter with Ball Valve
2 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 1070, LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x SV-24DC-14, Solenoid Valve 1/4" plastic, 24V DC
2 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
2 x AHUC-0606 Inline Ball Hand Valve Union 3/8" tubing Quick Connect
2 x 741-38, Diverter Valve for RO DI Water Systems
2 x AME-0406 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 3/8 NPTF
1 x FRQ600, Flow Restrictor 550 to 600ML / min
1 x Check Valve Elbow Type
1 x FRQ420, Flow Restrictor 420ML / min
1 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x 706, Membrane Filter Casing Housing Assembly
2 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x SV-110AC-14, Solenoid Valve 1/4" plastic, 110V AC
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x KT-103, Optional Manual Membrane Flush Valve
1 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x 718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
2 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-KOR24, O-RING FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 531, SMALL RO Storage Pressure Tank 2 Gallon 2G
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x FRQ200, Flow Restrictor 200ML / min
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 701C, Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x AHUC-0707 Inline Ball Hand Valve Union 1/2" tubing Quick Connect
2 x CBV-0404, Tank Ball Valve to 1/4 tubing
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x AME-0402 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 1/8 NPTF
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
2 x ATU-0404 TEE Union Connector 1/4" quarter inch Quick Connect
1 x 745, Garden Hose / Laundry Hose Adapter for RO/DI systems
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x 709, Automatic Shut Off Valve 4-way Four Way Valve
1 x SV-24AC-38, KSD Solenoid Valve 3/8" brass, 24V AC
2 x CBV-38, Tank Ball Valve to 3/8 tubing
2 x AUC-0404 Union Connector 1/4" quarter inch, Quick Connect
2 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x B2012, 20" Long Slim Big Blue Filter Cartridge Housing 260 322
1 x AME-0404 Male Elbow NPT Thread w/ Quick Connect 1/4 OD 1/4 NPTF
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x MK300, Maintenance kit for RO535, RO435, RO545
1 x Y3414CH, Garden Hose Y Adapter Valve Zinc coated 1/4" quick conn
1 x 214, Clear Inline DI Filter Cartridge Empty Case
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x MK225, Maintenance kit for Honeywell RO9100 and Filtercold RO-5,
1 x Y3414PL, Garden Hose Y Adapter Plastic Valve 1/4" quick
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
1 x 718, Tubing 30 feet 1/4" white tube LLDPE PE for drinking water
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6

View Cart$1,069.21
Information

Draining water ratio: 1:3:

The ratio of product to waste is a production rate to drain rate. If you put a pressure tank and measure how much waste water to fill the pressure tank, then the calculation is different. This ratio will be changing as it fills up the tank, since the drain rate is fixed at 500mL/min. and the production is decreasing as the tank fills up. So when the tank is empty, the ratio is 1:3, then as the tank fills up, it will be 1:4, 1:5 then it goes higher
until the tank is full.

Why did this happen? The pressure from the tank is pushing against the water. when the tank is empty, the tank pressure is 7 psi, as the tank fills up it goes higher so when the tank is almost full it can reach about 35 to 45 psi, so If you have 55 psi going into the RO, the net pressure across the membrane is 55-40 = 15 psi, that's why the system makes water slowly at the end.

If you wish to have less waste, you can purchase a smaller flow restrictor, so it limit the amount of water
going to the drain. However, there is a trade off. If you have less drain water, then the stage #4 membrane filter needs to be replaced more often. Also the TDS reading will be about 5 to 10 ppm higher after the 4th stage membrane. So you need to refill the DI resin more often.

The production rate of a RO system depends on your input pressure and water temperature, so when we say the ratio is 1:3 this is only approximation, it is not fixed. It depends on your water supply.

If you want the membrane to last longer, then have more drain. If saving water is more important, then use smaller flow restrictor and less drain. If you want both, then you need to add a booster pump or a permeate pump to the RO system.
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