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.

Continue

1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	.K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
3 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	.K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	Discontinued RO585NTF
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	.K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	Discontinued RO155
1 x	913, 5th stage inline carbon filter (every 12 months)
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
4 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Discontinued RO155C
1 x	.K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x	550, Standard Chrome Steel Faucet with Spigot for Water Filter,
2 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	Discontinued RO6ALK
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	723, Feed Water Adapter with Ball Valve
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	214, Clear Inline Filter Cartridge Empty Case
1 x	706, Membrane Filter Casing Housing Assembly
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	MK420, Maintenance kit for RO565

View Cart	$8,658.93

1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x	205, 3rd stage solid carbon block filter (replace every 12 month
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	.K6150P, KoolerMax 150GPD 6 Stage RO System w/ Booster Pump
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	310, 2nd stage CTA 10 US Membrane filter
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
3 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	.K6150PNTF, KoolerMax K6150P RO System Shell without tank faucet
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	Discontinued RO585NTF
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
2 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	HK120-PUMP KoolerMax Aeroponics Hydroponics System Booster Pump
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	.K5150P, KoolerMax 150GPD 5 Stage RO System w/Booster Pump
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	Discontinued RO155
1 x	913, 5th stage inline carbon filter (every 12 months)
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
4 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Discontinued RO155C
1 x	.K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x	550, Standard Chrome Steel Faucet with Spigot for Water Filter,
2 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	Discontinued RO6ALK
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x	568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	723, Feed Water Adapter with Ball Valve
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	SV-24AC-14, Solenoid Valve ESO for Aquatec pump 1/4" wiring
1 x	214, Clear Inline Filter Cartridge Empty Case
1 x	706, Membrane Filter Casing Housing Assembly
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	MK420, Maintenance kit for RO565

View Cart	$8,658.93