Flow meter measurement accuracy:

All meters are built in the same way and use the same formula to calculate the flow rate. There are many situations that affect the accuracy of the measurements. Trying to avoid them would increase the accuracy.

1. If there are air bubbles in the lines. Usually this might occur when using a pump to transfer water.

2. Incidents when the flow of water is too slow or too fast that is out of the measuring range. This meter has a range of 0.45 gpm and 3.7 gpm. If the flow of water is sometimes falls out of range, then it can't be counted or measured.
If you are not able to modify your setup in any way to avoid the effects of inaccuracy. You can apply a correction factor to the measurement. For example, take two to three different measurement to find the correction factor for the total count. Use a container that you can tell it has 1 gallon, 2 gallons, and 5 gallons. Use a stop watch to time how much time it takes for the meter to advance 1 gallon. If it takes 70 seconds to advance 1 gallon, then do the same test again to see if the time is about 70 seconds again. Then do the same test for 2 gallons of water. The time should be about 2 times 70 seconds or 140 seconds. If you do this test few times, and the results are the same that means you have found the correction factor. So, the correction factor in this case is 70 sec/ 60sec = 1.1666. If the meter reads 125 gallons then the actual value is about 125 * 1.1666 = 146 gallons.

Please understand most digital flow meters measures similarly. Industrial grade or commercial grade high accuracy flow meter are hundreds and thousands of dollars. Using a simple correction factor you can achieve higher accuracy regardless of your setup.

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1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
2 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.K5NTF KoolerMax K5 RO System Shell without tank and faucet
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
3 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	Discontinued RO585ERP
2 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x	706, Membrane Filter Casing Housing Assembly
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	Discontinued RO585
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
3 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	.K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	720, Feed Water Adapter with Needle Valve
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x	Discontinued RD150
3 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	741-38, Diverter Valve for RO DI Water Systems
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	.K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	Discontinued RO585A
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
2 x	Discontinued RD106
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	Discontinued RO585NTF
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water

View Cart	$8,119.24

1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
2 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.K5NTF KoolerMax K5 RO System Shell without tank and faucet
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
3 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	Discontinued RO585ERP
2 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x	706, Membrane Filter Casing Housing Assembly
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	Discontinued RO585
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
3 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	.K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	720, Feed Water Adapter with Needle Valve
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
1 x	Discontinued RD150
3 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	741-38, Diverter Valve for RO DI Water Systems
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	.K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	Discontinued RO585A
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
2 x	Discontinued RD106
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	Discontinued RO585NTF
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
1 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	718b Blue Color Tubing 24 feet 1/4" LLDPE PE tube drinking water

View Cart	$8,119.24