To calculate drip water (specifically, the total flow rate for a drip irrigation system), you need to determine the flow rate based on the length of drip tape and the area being irrigated. Here's a breakdown of the calculation using an example:
Let's say you have drip tape with a flow rate of 0.5 gallons per minute (gpm) per 100 feet. You want to irrigate an area using a certain length of this drip tape.
Here's how to calculate the total flow rate:
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Determine the total length of drip tape: Let's say you have 7,096 feet of drip tape.
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Divide the total length by 100: This gives you the number of 100-foot segments.
- 7,096 feet / 100 = 70.96
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Multiply the result by the flow rate per 100 feet: This gives you the total flow rate for that length of drip tape.
- 70.96 x 0.5 gpm = 35.5 gpm
Therefore, 7,096 feet of drip tape will have a total flow rate of 35.5 gpm.
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Scale for multiple areas: If you are irrigating multiple identical areas (e.g., multiple acres), multiply the flow rate for one area by the number of areas.
- For three acres, the total flow rate would be: 35.5 gpm x 3 = 106.5 gpm
In summary, the formula is:
(Total Length of Drip Tape / 100) x (Flow Rate per 100 feet) = Total Flow Rate
Here's a table summarizing the example:
| Step | Calculation | Result |
|---|---|---|
| 1. Total Length of Drip Tape | 7,096 feet | 7,096 feet |
| 2. Divide by 100 | 7,096 / 100 | 70.96 |
| 3. Multiply by Flow Rate (0.5 gpm) | 70.96 x 0.5 | 35.5 gpm |
| 4. Multiply by Number of Areas (3) | 35.5 x 3 | 106.5 gpm |
