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A PopEyed Visual Guide to Liquid Flow Rates

Train yourself to assess flow like a pro

By Rob Cockerham

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Fast Drip
Rob Cockerham
There is no way to jazz this one up, so let's just get it out of the way. I measured a "one drop per second" flow and it worked out to 0.3 gallons per hour.
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Very Thin Stream
Rob Cockerham
If you slowly increase the flow, a fast drip becomes a steady stream. The smallest stream I could achieve was this one, about 1/16th of an inch wide. It was 1.1 gallons per hour.
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