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	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	Discontinued RD150
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	741-14, Diverter Valve for Countertop Water Units
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	bulk818, DI resin refill bags Di-Ionization media
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	bulkc10, Koolermax Carbon Block Filter
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	205, 3rd stage solid carbon block filter (replace every 12month)

View Cart	$2,251.49

1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	Discontinued RD150
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	741-14, Diverter Valve for Countertop Water Units
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	bulk818, DI resin refill bags Di-Ionization media
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	bulkc10, Koolermax Carbon Block Filter
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	205, 3rd stage solid carbon block filter (replace every 12month)

View Cart	$2,251.49