When the grid fails, most families lose access to clean water. For those relying on a private well, the problem is even more immediate—without electricity, a deep well pump for home use stops working, and no pump means no water.
That was the reality facing Mark's family, located in their local area, with a 205 ft deep well (static water level at 68 feet). The solution? A solar well pump. Here’s how Mark's mother took control of her family’s water supply, turning a prepper’s concern into a practical, off-grid backup system.
Solar Well Pump for a 205ft Deep Home Well
A solar water pump for home that runs entirely on solar — that's what this homeowner needed. With a static water level of 68 feet and a total depth of 205 feet, the Flowatt 3-inch 750W solar deep well submersible pump (Model: FLW-3SPC3.8/95-D72/750) proved to be the ideal solution.
This submersible well pump delivers a maximum head of 95 meters (312 feet), well beyond the 205 ft requirement. When paired with a solar panel for water pump (two 550W panels wired in series), this solar water system operates completely off-grid — eliminating concerns about power outages.
The 3-inch pump diameter fits perfectly inside a 6-inch well casing. According to the pump's performance curve, it delivers 1.5 m³/h at 60 meters of head — sufficient for daily household water needs.
750W Solar Water Pump for Home: Daily Water Supply Breakdown
With a flow rate of 1.5 m³ per hour (1,500 liters) at 60 meters of head, this submersible water pump for home delivers enough water for a typical household's daily needs. For reference, 1,500 liters is approximately:
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10-15 showers (depending on shower duration)
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5-8 loads of laundry
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30-40 toilet flushes
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Drinking and cooking water for a family of 4 for 3-4 days
The submersible water pump runs during daylight hours, filling a 10 gallon water tank and a larger storage tank. The 10 gallon tank provides emergency backup for short outages, while the main tank supplies evening and cloudy day water. This setup ensures the family has continuous access to water for drinking, cooking, bathing, and sanitation — without relying on the grid.
For this homeowner, the peace of mind that comes from knowing her family will never be without water — thanks to a reliable submersible water pump and a 10 gallon water tank — is priceless.
Frequently Asked Questions About the Flowatts 750W Solar Submersible Pump
Q: What size solar panel does this 750W pump need?
A: The pump requires two 550W solar panels wired in series (total 1,100W). The recommended panel specifications are 42Vmp / 51.7Voc per panel. This configuration allows the pump to operate at its optimal 72V DC input, delivering maximum flow during peak sunlight hours.
Q: Can I connect this pump to my existing solar panel array?
A: Possibly. Check your array's voltage output. The pump accepts 60-220V DC. If your existing solar panel system falls within this range, you can connect directly. If not, a dedicated solar array for the pump is recommended.
Q: How do I size solar panels for my specific well depth?
A: Use this simple rule: deeper wells need more solar input. For a 205 ft well like this case study, two 550W panels worked perfectly. For shallower wells (under 100 feet), you may use smaller solar panels (400W-500W each). Contact us for a free sizing consultation.
