How much water can you expect from a faucet dripping for 35 seconds?

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gsenviro | College Teacher | (Level 1) Educator Emeritus

Posted on

Some additions or rather examples: If you follow the links to the EPA and USGS pages, you will find that they use different drip rates and (possibly) different drip volumes.

USGS uses a drip rate of 1 drip/minute and a drip volume of 0.25 ml/drip in their drip calculator, whereas the EPA uses a drip rate of 1 drip/second and a drip volume of about 0.36 ml/drip.

If you have some precise numbers for drip rate and drip volume, it would be much easier to find the answer to your question. Otherwise we can make some simple assumptions and obtain an answer (based on these simplifying assumptions).

Hope this helps.

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gsenviro | College Teacher | (Level 1) Educator Emeritus

Posted on

Well, this is an interesting question, but a tough one to answer without the appropriate data. There are a variety of faucets available in the market and many have different drip rates. Similarly, without knowing the actual drip rate (say 1 drip per second vs. 1 drip per minute) and the volume of the drip, it is really difficult to answer the question.

If we make some simplifying assumptions such as that the drip rate is 1 drip/sec and the drip volume is 0.25 ml, then in 35 seconds, there will be 35 drips and the total water volume wasted would be 8.75 ml.

However, depending on the actual values of these parameters, the answer can be different. One easy way would be to collect the dripping water in a measuring container (such as cup) for a given time duration and measure its volume. 

Hope this helps.

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