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	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
6 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
3 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x	MKP, Maintenance kit for K5150P K6150P AR150P
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	720, Feed Water Adapter with Needle Valve
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	719, Drain Saddle Clamp / Valve
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
2 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	bulk201, Sediment Filter
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	bulk205, Carbon Block Filter
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	6th Stage pn215 Refillable inline DI filter (color change)
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	Discontinued RO155C
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	Discontinued RO585A
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	752, DC Booster Pump w/ Transformer
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	Discontinued RO6ALK
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	.SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
3 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	bulk818, DI resin refill bags Di-Ionization media
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	Discontinued RO585NTF
1 x	Discontinued RD102
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	bulkc10, Koolermax Carbon Block Filter
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)

View Cart	$10,483.39

1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
6 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
3 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
2 x	MKP, Maintenance kit for K5150P K6150P AR150P
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	720, Feed Water Adapter with Needle Valve
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	SV-24DC-14, Solenoid Valve ESO 1/4" plastic, 24V DC
1 x	719, Drain Saddle Clamp / Valve
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
2 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	bulk201, Sediment Filter
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	bulk205, Carbon Block Filter
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	6th Stage pn215 Refillable inline DI filter (color change)
2 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	Discontinued RO155C
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	Discontinued RO585A
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x	BBK20, Replacement Filter 20" Big Blue Whole House WH-2201 WH250
1 x	KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	752, DC Booster Pump w/ Transformer
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	Discontinued RO6ALK
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	.SW-1 COUNTERTOP WATER FILTER SYSTEM (WHITE HOUSING)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K5
3 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	KF320, Elite Series: Brushed Nickel / Stainless Steel Faucet
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	bulk818, DI resin refill bags Di-Ionization media
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	Discontinued RO585NTF
1 x	Discontinued RD102
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	bulkc10, Koolermax Carbon Block Filter
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)

View Cart	$10,483.39