Pressure switch does not shut off pump sometimes:

To make the pump turn on/off automatically, you need to have this combination: pump, transformer, pressure switch (TSO) and solenoid valve (ESO). If you only have a pump, transformer, and pressure switch, the pump will not be able to turn off by itself.

The pressure switch should be connected at the pure water output line, so that when the tank is full, it would shut off the pump. The solenoid valve should be connected in front of the pump, so when the tank is full, it can shut off the water supply.

Quantity of nozzles you have will play a factor as well. You’ll need to adjust the pressure setting on the pressure switch to accommodate your application and the quantity of nozzles. To do so, you’ll need to use a small hex wrench to turn the hex screw clockwise 1 to 2 turns; then turn on your pump and water; allow the pressure to build up. This may take a few minutes.

Quantity of nozzles you have will play a factor as well. You’ll need to adjust the pressure setting on the pressure switch to accommodate your application and the quantity of nozzles. To do so, you’ll need to use a small hex wrench to turn the hex screw clockwise 1 to 2 turns; then turn on your pump and water; allow the pressure to build up. This may take a few minutes.

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1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Discontinued RO155C
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)

View Cart	$1,391.49

1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
2 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Discontinued RO155C
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	ERP500 Aquatec Permeate Pump Reverse Osmosis RO System USA made
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)

View Cart	$1,391.49