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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4 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
3 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x	FRQ550, Flow Restrictor 500 to 600ML / min
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
2 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
5 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	FRQ300, Flow Restrictor 300ML / min
3 x	Parts, Ro Water System Installation Parts Bag 1/4"
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
3 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
6 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
2 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
3 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
2 x	706, Membrane Filter Casing Housing Assembly
2 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	205, 5th stage final carbon filter
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	.SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x	752, DC Booster Pump w/ Transformer
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	PE Tubing Tube Cutter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	FRQ200, Flow Restrictor 200ML / min
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	719, Drain Saddle Clamp / Valve
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P

View Cart	$4,969.14

4 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
3 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
3 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
5 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
2 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x	FRQ550, Flow Restrictor 500 to 600ML / min
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
2 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
2 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
5 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	FRQ300, Flow Restrictor 300ML / min
3 x	Parts, Ro Water System Installation Parts Bag 1/4"
3 x	3rd stage C10 carbon block filter (replace every 6-12 months)
3 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	5th Stage pn215 Refillable inline DI filter (color change)
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
6 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
2 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
2 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
2 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
3 x	Optional: 564 Membrane Filter Housing Wrench Opener
2 x	745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
3 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	717, Tubing 15 feet 1/4" white tube LLDPE PE for drinking water
2 x	706, Membrane Filter Casing Housing Assembly
2 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
1 x	718xl, Tubing 100 feet 1/4" white tube LLDPE PE for drinking wat
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	205, 5th stage final carbon filter
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	NM-5104, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	.SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x	752, DC Booster Pump w/ Transformer
1 x	741-38, Diverter Valve for RO DI Water Systems
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	718TB38, Tubing, 20 feet 3/8" white LLDPE PE for drinking water
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	PE Tubing Tube Cutter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	FRQ200, Flow Restrictor 200ML / min
1 x	FRQ420, Flow Restrictor 420ML / min
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	709, Automatic Shut Off Valve 4-way Four Way Valve
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	719, Drain Saddle Clamp / Valve
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P

View Cart	$4,969.14