Determine Your Well Pump Flow Rate
Your well pump can pump water up to a certain maximum flow rate, in gallons per minute. For example say you could fill a 5 gallon in 1 minute. This is a flow rate of 5 gallons per minute or 5 GPM. If the water filled up a 5 gallon bucket in 30 seconds, the flow rate would 10 GPM. Knowing how many gallons per minute your water system can pump is critical to picking the right type of water treatment system, and it is easy to determine.
It is easy! All you need is a 1 or 5 gallon bucket and a watch or clock. It takes just a few minutes:
1. Open any hose bib or faucet until pump turns on.
2. Close hose bib or faucet and let pump fill up pressure tank until it turns off.
3. Using a 1 or 5 gal. bucket, open faucet, collect and measure all water discharged until pump turns on.
4. When pump turns on, immediately close faucet and start timing pump cycle*
5. When pump turns off, record pump cycle time to refill pressure tank in seconds.
6. Divide the number of gallons collected in Step 3 by the number of seconds in Step 5.
7. Multiply the answer from Step 6 by 60.
8. The answer in Step 7 is the average pumping capacity of the pump in gallons per minute (GPM
Determine Your Well Pump Flow RateYour well pump can pump water up to a certain maximum flow rate, in gallons per minute. For example say you could fill a 5 gallon in 1 minute. This is a flow rate of 5 gallons per minute or 5 GPM. If the water filled up a 5 gallon bucket in 30 seconds, the flow rate would 10 GPM. Knowing how many gallons per minute your water system can pump is critical to picking the right type of water treatment system, and it is easy to determine.It is easy! All you need is a 1 or 5 gallon bucket and a watch or clock. It takes just a few minutes:1. Open any hose bib or faucet until pump turns on.2. Close hose bib or faucet and let pump fill up pressure tank until it turns off.3. Using a 1 or 5 gal. bucket, open faucet, collect and measure all water discharged until pump turns on.4. When pump turns on, immediately close faucet and start timing pump cycle*5. When pump turns off, record pump cycle time to refill pressure tank in seconds.6. Divide the number of gallons collected in Step 3 by the number of seconds in Step 5.7. Multiply the answer from Step 6 by 60.8. The answer in Step 7 is the average pumping capacity of the pump in gallons per minute (GPM
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