Why install booster pump before 4th stage membrane:

Install the booster pump before stage1 is easier but the solenoid valve and pump may get dirty water and debris from water supply hence shorten the life of the solenoid valve and pump. Also the bottom 3 filters will not see high pressure to prevent bursting of filter housing. The pressure switch can be installed anywhere after the RO membrane on the pure water side. Either way works.

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1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	752, DC Booster Pump w/ Transformer
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	316, 2nd stage CTA 16 US Membrane filter

View Cart	$1,092.44

1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x	752, DC Booster Pump w/ Transformer
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	BBK10, Replacement Filter Big Blue Whole House WH-1134
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	316, 2nd stage CTA 16 US Membrane filter

View Cart	$1,092.44