Fountain dimensions: Top basin: 12" x 12" x 9" tall Middle basin: 15" x 15" x 9" tall Bottom basin: 18" x 18" x 9" tall Overall: 18" x 18" x 27" tall Pump inlet: 1" diameter Tubing: 3/4" inside diameter throughout I just purchased the fountain shown for my backyard and need to buy a submersible pump for it. The pump is placed in the bottom basin and pumps the water out of a pipe just below the waterline of the top basin. When running correctly, each of the basins is 2/3 full, the water flows at 20 gallons per minute, and the head loss through the pump/piping system is 3.72 feet. If the pump I want has a 62% efficiency, what size pump (horsepower) should I buy?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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**Fountain Description and Pump Selection Guide**

**Fountain Dimensions:**

- **Top Basin:** 12” x 12” x 9” tall
- **Middle Basin:** 15” x 15” x 9” tall
- **Bottom Basin:** 18” x 18” x 9” tall
- **Overall Size:** 18” x 18” x 27” tall
- **Pump Inlet:** 1” diameter
- **Tubing:** 3/4” inside diameter throughout

**Purchasing and Installing a Submersible Pump:**

I have recently acquired a decorative fountain for my backyard and need a suitable submersible pump. The pump will be situated in the bottom basin, drawing water from there and circulating it to a pipe under the top basin’s waterline.

**Operational Details:**

- Each basin maintains a 2/3 full water level under standard operation.
- Water flows at a rate of 20 gallons per minute.
- The total head loss through the pump and piping system is calculated at 3.72 feet.

**Pump Selection Calculation:**

To achieve optimal performance, considering the pump’s efficiency at 62%, it is essential to determine the correct horsepower required. The necessary pump size can be calculated based on these operational parameters to ensure the fountain runs smoothly and efficiently.
Transcribed Image Text:**Fountain Description and Pump Selection Guide** **Fountain Dimensions:** - **Top Basin:** 12” x 12” x 9” tall - **Middle Basin:** 15” x 15” x 9” tall - **Bottom Basin:** 18” x 18” x 9” tall - **Overall Size:** 18” x 18” x 27” tall - **Pump Inlet:** 1” diameter - **Tubing:** 3/4” inside diameter throughout **Purchasing and Installing a Submersible Pump:** I have recently acquired a decorative fountain for my backyard and need a suitable submersible pump. The pump will be situated in the bottom basin, drawing water from there and circulating it to a pipe under the top basin’s waterline. **Operational Details:** - Each basin maintains a 2/3 full water level under standard operation. - Water flows at a rate of 20 gallons per minute. - The total head loss through the pump and piping system is calculated at 3.72 feet. **Pump Selection Calculation:** To achieve optimal performance, considering the pump’s efficiency at 62%, it is essential to determine the correct horsepower required. The necessary pump size can be calculated based on these operational parameters to ensure the fountain runs smoothly and efficiently.
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