If you own a well that reaches 400 feet deep, you already know that pulling water from that depth demands serious pumping power. A standard shallow-well jet pump simply won’t cut it. You need a submersible pump that can handle the high head pressure while delivering enough flow for your household or irrigation needs. In this guide, we break down exactly what size pump you need for a 400 ft well and highlight ten top-rated models that we have carefully assessed for performance, durability, and value.
Whether you are replacing an aging unit or installing a new system, factors like horsepower, voltage, flow rate, and well casing diameter all matter. We have reviewed a range of pumps from trusted brands like Red Lion, Hallmark Industries, VEVOR, and more. For a broader overview of well pump selection, check out our complete guide: What Pump Do I Need for My Well?
Pros
- High lift capacity of 380 feet suitable for deep wells.
- Stainless steel construction ensures durability and corrosion resistance.
- Easy installation with included 33-foot cord and external control box.
- Good flow rate of 10 GPM meets typical residential and small farm needs.
- Affordable price for a 1HP submersible pump with essential features.
Cons
- Limited to 3.5-4 inch well casings; not compatible with narrower wells.
- External check valve may require careful installation to avoid issues.
- Only a few customer reviews available, so long-term reliability is less proven.
The iMeshbean 3-inch deep well submersible pump is designed for homeowners and industrial users needing reliable water extraction from deep wells. With a 1HP motor and 380-foot lift, it suits residential irrigation, farm use, and water lifting from reservoirs or tanks.
Its 10 GPM flow rate ensures a steady water supply for typical household needs. The stainless steel body resists rust and wear, promising long service life in harsh environments.
The pump fits standard 3.5-4 inch well casings and comes with a 33-foot power cord for straightforward installation. The external control box includes an ON/OFF switch, making operation simple, and the built-in check valve prevents water backflow.
One limitation is its compatibility only with 3.5-4 inch casings, so it won't fit narrower wells. Also, with only a handful of reviews, long-term performance data is limited, though initial feedback is positive.
Overall, the iMeshbean deep well pump offers excellent value for its price, combining robust construction, solid performance, and essential features. It is a strong choice for those with standard well sizes seeking a dependable water pumping solution.
Power Source: Corded Electric
Flow Rate: 10 GPM
Maximum Lifting Height: 380 feet
Voltage: 110 volts
Horsepower: 1 hp
Material Type: Stainless Steel
Color: Silver
Style: Submersible Deep Well
Item Dimensions: 3"L x 3"W x 37"H
Item Weight: 15 pounds
Brand: iMeshbean
Model Number: 23253#
Specific Uses: Industrial Irrigation, Residential Use, Well Water Extraction, Reservoir Water Extraction, Open Water Tank Extraction, Water Lifting Works
Included Components: DEEP WELL PUMP
Pros
- Exceptional power and capacity for deep well and high-head applications.
- Durable stainless steel construction with IP68 waterproofing ensures long life.
- Built-in overheat protection adds safety and reliability.
- High 5.0 rating from verified buyers indicates strong performance.
- Wide range of uses from home to commercial irrigation.
Cons
- Only 2 customer reviews so far, limiting long-term reliability assessment.
- Requires careful installation to avoid dry running; not suited for shallow wells or low water levels.
- External controller is only IP44, so it should be placed in a dry or protected area.
The HoldwellS 3HP Deep Well Submersible Pump is a robust solution for anyone needing reliable water extraction from deep wells or high-capacity irrigation. Powered by a 2200W copper motor with 16-stage thermoplastic impellers, it delivers a maximum flow of 37 gallons per minute and an impressive head of 640 feet, making it suitable for demanding residential, agricultural, and industrial applications.
Standout features include the built-in overheat protection that automatically shuts off the motor during stall or abnormal conditions, preventing burnout and extending pump life. The stainless steel construction (frame, outlet, connecting parts) combined with an IP68 waterproof rating on the pump itself ensures excellent corrosion resistance and durability in constant underwater use. The included 33-foot power cord and 1-1/4 inch NPT stainless steel discharge simplify installation in 4-inch or larger casings.
Design and build quality are solid: the high-precision rotor and copper motor maintain stable running, while the built-in check valve prevents water backflow. A stainless steel filtration mesh blocks impurities, though for new wells with excess sediment, adding a layer of gauze is recommended. The external controller is rated IP44, so it must be kept in a dry location.
A potential drawback is the limited number of customer reviews (only two at this time), which makes it harder to gauge long-term performance across many users. Additionally, the pump must not be run dry or at extremely low water levels, requiring proper well monitoring. The 33-foot cord may be short for very deep installations; an extension or separate wiring may be needed.
Overall, the HoldwellS 3HP pump offers excellent power, durability, and safety features at a competitive price point. It is a great choice for those with deep wells or high-volume water needs who want a stainless steel pump with built-in protection. With proper installation, it should deliver reliable service for years.
Brand: HoldwellS
Model Number: JP00000083
Horsepower: 3 HP (2200W)
Voltage: 230V, 60Hz
Max Flow: 37 GPM (140 L/min)
Max Head: 640 ft (195 m)
Pump Material: Stainless Steel (frame, outlet, connecting parts)
Waterproof Rating: IP68 (pump), IP44 (external controller)
Discharge Size: 1-1/4 inch NPT
Cord Length: 33 ft
Well Casing: 4 inches or larger
Motor Insulation: Class F
Impeller Stages: 16
Included Components: 3HP Deep Well Submersible Pump, external controller
Weight: Not specified (heavy duty)
Pros
- Durable stainless steel construction resists rust and wear for long-term reliability.
- No external control box needed, saving on additional purchase and installation effort.
- High flow rate and head suitable for deep wells and high-demand uses.
- Users report quiet operation and strong water pressure after installation.
Cons
- Some users noted early rusting on the exterior, though performance remained unaffected.
- Requires vertical installation and must never run dry, which may limit placement options.
- Comes with only a 10-foot power cable; longer cable may be needed for deeper installations.
The WASSERMANN 1HP submersible well pump is a robust solution for 4-inch and larger well casings. Designed for farms, homes, and irrigation, it combines a stainless steel body with a built-in control box to simplify installation. With a 34 GPM flow rate and 196-foot head, it handles deep wells and high-demand applications effectively.
Standout features include the integrated control box, which eliminates the need for an external unit and reduces wiring hassle. The stainless steel construction and SS304 pump head resist corrosion, while the premium filtration mesh keeps debris out. Users report excellent water pressure and quiet operation, making it a strong performer for daily use.
Build quality is solid, though one reviewer noted surface rust after two weeks. This may be cosmetic and not affect function, but it's worth monitoring in harsh water conditions. The pump is designed for vertical installation only and must never run dry to avoid damage.
Drawbacks include a short 10-foot power cable, which may require extension for deeper wells. Also, the pump is not suitable for wells with excessive sand without additional filtration. Despite these minor issues, the value is high compared to pricier alternatives.
Overall, the WASSERMANN 1HP submersible pump offers reliable performance, easy installation, and durable materials at a competitive price. It is an excellent choice for homeowners and farmers needing a dependable deep well pump for irrigation or household water supply.
Pros
- High flow rate of 35 GPM meets heavy irrigation and household needs simultaneously.
- All stainless steel build provides excellent corrosion resistance and durability.
- Customer reviews confirm reliable performance over extended use, even for large-scale watering.
- Includes necessary installation components (splice kit) for easier setup.
- Powerful 2 HP motor handles deep well depths up to 400 feet effectively.
Cons
- Heavy weight (43 lbs) may require two people for installation and handling.
- Requires 230V electrical supply, which may need professional electrician installation if not already available.
- Only a 1-year manufacturer warranty, which is relatively short for a pump of this price range.
The Hallmark Industries 2 HP Deep Well Submersible Pump is a powerful solution for property owners who need a reliable, high-capacity water supply from deep wells. Designed for both amateur and professional use, this pump excels in demanding environments such as large gardens, orchards, or multiple household setups.
Standout features include a 35 GPM flow rate and the ability to lift water up to 400 feet. Real-world performance, as noted by a reviewer, has proven its capability to handle nonstop irrigation for 150 fruit trees and two households over a year without issues. The all-stainless steel construction ensures resistance to corrosion, a key factor for longevity in varied water conditions.
The build quality is robust, with a 14-stage impeller design that maximizes efficiency and pressure. The 3.5-inch diameter fits standard well casings, and the included splice kit simplifies electrical connections. However, the pump weighs 43 pounds, making installation a two-person job, and it requires a 230V power source, which may involve additional wiring costs.
Potential downsides include the limited 1-year warranty, which is shorter than some competitors offer for similar pumps. Additionally, the unit is corded electric, demanding a proper electrical setup. Despite these considerations, the pump's performance and durability make it a strong contender for heavy-duty use.
Overall, the Hallmark Industries 2 HP Submersible Pump offers excellent value for those requiring consistent, high-volume water delivery from deep wells. Its stainless steel build and powerful output justify the investment, especially for agricultural or multi-residence properties. While installation requires some effort and electrical expertise, the long-term reliability is commendable based on user feedback.
Pros
- Rugged stainless steel and thermoplastic construction for durability.
- No control box required due to 2-wire motor design.
- High flow rate of 12 GPM meets most household water demands.
- Built-in check valve and suction screen reduce maintenance.
- Positive customer feedback on ease of installation and performance.
Cons
- Plastic discharge and motor bracket may feel less robust than all-metal alternatives.
- Some users noted the need to bypass existing control box wiring when replacing older pumps.
- Limited to 4-inch or larger wells, not suitable for smaller casings.
The Red Lion RL12G05-2W2V is a 1/2 HP submersible deep well pump designed for 4-inch or larger wells. It is ideal for homeowners seeking a reliable water supply for depths up to 120 feet, delivering up to 12 gallons per minute. This pump is a solid choice for DIY installation thanks to its 2-wire motor that does not require a separate control box.
Standout features include a built-in check valve to prevent rapid cycling and a suction screen that keeps debris away from the impellers. Real-world performance is strong, with users reporting consistent water flow even at moderate depths. The stainless steel casing adds corrosion resistance, while the thermoplastic discharge and motor bracket keep weight manageable for installation.
Build quality is generally praised, though some users note the plastic components may feel less premium than all-metal pumps. The included wire splice kit and long lead wires simplify electrical connections, a highlight in customer reviews. The Franklin Electric motor inside is a trusted brand, contributing to long-term reliability.
A potential drawback is the need to rewire existing control boxes when replacing older 3-wire pumps, which may require additional effort. Additionally, the pump is not designed for wells smaller than 4 inches in diameter. Despite these points, most users find installation straightforward and the pump performs as expected.
Verdict: The Red Lion RL12G05-2W2V offers excellent value for homeowners needing a mid-range submersible pump. Its ease of installation, robust features, and positive customer feedback make it a reliable choice for consistent water supply. If you require a pump for a 4-inch well and prefer a simple 2-wire setup, this model is a strong contender.
Pros
- Excellent value for a 2HP pump with high flow and head
- Durable stainless steel build and IP68 rating for long life
- Copper motor with overheat protection adds reliability
- Positive customer feedback on performance and delivery speed
- Suitable for deep wells up to 500 feet as confirmed by users
Cons
- Some users reported pump failure after two months of use
- Requires proper installation with an additional check valve recommended
- Must not be used without water to avoid idle running and damage
The VEVOR 2HP Deep Well Submersible Pump is a powerful solution for homeowners, farmers, and industrial users needing reliable water extraction from deep wells. With a maximum flow of 37 GPM and a head of 427 feet, it can handle wells up to 500 feet deep, as confirmed by user feedback.
Standout features include a full stainless steel frame and IP68 waterproof rating, ensuring long-term resistance to rust and corrosion. The 2HP copper motor with built-in overheat protection provides stable performance and automatic shutoff in abnormal conditions, preventing damage.
The pump's 12-stage thermoplastic impellers and 33-foot power cord make installation straightforward. A built-in check valve and stainless steel filter help maintain water quality, though an additional check valve is recommended for optimal backflow prevention.
Potential drawbacks include a reported failure after two months in one case, and the need to avoid dry running. Users should ensure proper installation and maintenance to maximize lifespan.
Overall, the VEVOR pump offers exceptional value for its price, with strong performance and durable construction. It is a top-rated choice in the well pump category, ideal for those seeking a cost-effective, high-capacity submersible pump.
Pros
- Excellent flow rate (33 GPM) for its price range
- Corrosion-resistant stainless steel build
- High lift height (207 feet) handles deep wells
- Thermal protection adds reliability
- Easy installation with included splice kit
Cons
- Ground wire is smaller gauge than ideal, requiring careful splicing
- May experience air locking if system is drained, needing manual priming
- Some users report the need for an additional brass check valve to prevent issues
The Hallmark Industries MA0414X-7 is a 1HP deep well submersible pump designed for homeowners, farmers, and anyone needing a reliable water supply from a deep well. With a maximum flow of 33 GPM and lift capacity of 207 feet, it is well-suited for irrigation, livestock watering, and residential use. Its stainless steel and thermoplastic build promise durability, and the included splice kit makes DIY installation feasible for handy users.
In real-world use, this pump delivers solid performance. Reviews highlight that it easily maintains 20 GPM open discharge and can sustain 11 GPM at 65 PSI for hours. It effectively fills large tanks and provides steady pressure. The thermal protection is a plus, preventing damage in case of overheating. However, several users note that the ground wire is unusually thin, which can complicate splicing and may require extra care or a higher-quality connection.
The design is compact at 3.8 inches in diameter, fitting most standard well casings. The stainless steel outer shell resists rust, and the thermoplastic components add impact resistance. One common issue reported is air locking when the system is drained or turned off for extended periods. This can be mitigated by adding a brass check valve and manually priming the pump each spring or after shutdown.
Despite these drawbacks, the pump offers exceptional value for its price. It competes well with more expensive models, especially for applications where the pump runs continuously rather than cycling on and off. For those comfortable with basic electrical work and willing to address the minor ground wire and air lock concerns, it is a cost-effective solution that delivers reliable water flow.
Overall, the Hallmark Industries MA0414X-7 is a strong performer in its class, backed by thousands of positive reviews. It earns a solid recommendation for budget-conscious users who need a high-flow submersible pump for deep wells, as long as they are prepared to handle the small installation quirks. With proper setup, it can provide years of dependable service.
Pros
- All stainless steel construction for maximum rust resistance and longevity.
- High output of 13 GPM and 270 feet of head for demanding deep well applications.
- Affordable price point compared to similar pumps from other brands.
- Comes with essential installation accessories (splice kit, tape, manual).
- Positive customer feedback on easy installation and reliable performance.
Cons
- Instructions are sparse and lack detail, requiring additional research for proper setup.
- No ground wire included; check local electrical codes to ensure safe installation.
- 10-foot power cable may be too short for some installations, but the included splice kit allows extension.
The Hallmark Industries MA0459X-14A is a 3/4 horsepower submersible deep well pump built for homeowners who need a reliable water supply from depths up to 247 feet. With its all-stainless steel shell and 14-stage design, it stands out as a durable and efficient option in the mid-range price category.
In real-world use, the pump delivers a strong 13 gallons per minute and a maximum head of 270 feet, easily handling typical household demands. The stainless steel construction not only resists corrosion but also keeps the unit lightweight at just under 24 pounds, making installation simpler than many cast-iron alternatives.
Build quality is solid, with a clean submersible design and standard 1-inch NPT outlet. The included splice kit and waterproof tape are helpful for extending the power cable, though the instructions are minimal and may leave some users searching online for guidance.
Potential drawbacks include the lack of a ground wire and the short 10-foot cable, which may require extra effort for deeper wells. However, the overall value is excellent for the money, and hundreds of positive reviews confirm its reliability.
Verdict: If you need a capable, corrosion-resistant deep well pump without breaking the bank, the Hallmark Industries MA0459X-14A is a strong choice. Just be prepared to supplement the skimpy instructions with your own research.
Brand: Hallmark Industries
Model: MA0459X-14A
Horsepower: 3/4 HP
Voltage: 230V / 60Hz / 1Ph
Stages: 14
Max Head: 270 feet
Max Flow: 13 GPM
Outlet Size: 1 inch NPT
Shell Material: Stainless Steel
Intake Material: Cast Iron
Power Cable Length: 10 feet
Weight: 23.9 pounds
Dimensions: 37 x 4.5 x 4.5 inches
Pros
- Exceptional flow rate (32 GPM) and head height (174 ft) for a 3/4HP pump.
- Stainless steel construction resists rust and corrosion, ideal for septic and well water.
- 33-foot UL power cord provides flexibility in installation and meets safety standards.
- 3-year warranty and included installation accessories (electrical tape, nylon rope, self-amalgamating tape) add value.
- Clog-resistant bottom suction design reduces maintenance in sediment-heavy water.
Cons
- Requires a 4-inch or larger well casing, limiting use in smaller-diameter wells.
- No built-in filter; recommended to add a gauze filter in sediment-heavy environments for optimal performance.
- 115V only, so not suitable for 230V systems without voltage conversion.
The VERIWIS 4-inch submersible well pump (model 4SWP5.8-0.75/115V) is a robust 3/4 HP unit designed for homeowners and professionals who need reliable water transfer in demanding applications. With a flow rate of 32 GPM and a maximum head of 174 feet, this pump is well-suited for septic system maintenance, agricultural irrigation, livestock watering, and pond management. Its compact 4-inch diameter fits standard well casings, making it a versatile choice for various setups.
Performance-wise, the multi-stage impeller system ensures consistent pressure even under heavy loads, and the built-in capacitor start delivers smooth startup every time. In real-world use, users report strong water delivery and quiet operation. The stainless steel construction resists corrosion from effluent and groundwater, which extends the pump's lifespan in challenging environments. The 33-foot UL certified power cord provides ample reach for deep wells and meets safety standards.
Design and build quality are solid: the fully sealed motor prevents water ingress, and the clog-resistant bottom suction reduces the risk of debris jams. Installation is straightforward for standard 4-inch wells, with a 1-1/4 inch FNPT outlet that accepts steel, PVC, or flexible hose. The included accessories (electrical tape, nylon rope, self-amalgamating tape) are a nice touch, though a separate filter is recommended for sediment-heavy water.
Potential drawbacks include the pump's reliance on a minimum 4-inch casing, which may not fit narrower wells. Additionally, it operates on 115V only, so users with 230V systems will need a transformer or alternative model. Some users note that for extremely dirty water, a pre-filter is essential to avoid clogging the intake.
Overall, the VERIWIS submersible well pump offers excellent value for its price. It combines high flow, corrosion resistance, and a generous 3-year warranty. For anyone needing a dependable pump for septic, irrigation, or livestock watering, this is a strong contender. We recommend it for its performance and durability.
Pros
- Exceptional value: delivers 3 HP performance at a 2 HP price and energy consumption.
- Robust build quality with stainless steel construction and sealed bearings for longevity.
- High flow rate and head height meet demanding water needs for homes and farms.
- Comes with necessary accessories like control box and installation kits, simplifying setup.
- Positive user feedback on performance and helpful customer support from the manufacturer.
Cons
- Control box feels cheaply made according to some users, though it functions adequately.
- Requires a well casing of at least 5 inches; will not fit standard 4-inch casings.
- Some reports of units failing after one year, just past the warranty period, raising long-term reliability questions.
The Hallmark Industries MA0419X-12AEXT is a 2 HP, 230V deep well submersible pump designed for 5-inch or larger well casings. It is an excellent choice for homeowners, farms, and light commercial applications requiring reliable water supply from deep wells.
This pump delivers an impressive 35 GPM flow rate and up to 400 feet of total head, rivaling the output of many 3 HP pumps while using less energy. The patented 12-stage impeller design and stainless steel construction ensure durability and corrosion resistance.
The pump features a hermetically sealed motor with thermal protection for safe operation, and heavy-duty thermoplastic impellers reduce noise. It comes with a control box and installation accessories, though some users note the control box feels less robust than the pump itself.
Potential downsides include the need for a 5-inch minimum casing, which may limit its use in narrower wells. Additionally, while many users report years of reliable service, a few have experienced failures after one year, so the warranty period is something to consider.
Overall, the Hallmark Industries MA0419X-12AEXT offers exceptional value for its performance level. With proper installation and maintenance, it is a cost-effective solution for deep well water needs, especially for those seeking high flow rates without the price tag of a 3 HP pump.
Power Source: Corded Electric
Flow Rate: 35 GPM
Maximum Lifting Height: 400 feet
Voltage: 230 VAC
Horsepower: 2 HP
Material: Stainless Steel
Style: Submersible
Item Weight: 40 pounds
Discharge Size: 1-1/4" NPT
Number of Stages: 12
Amperage: 10.2 Amps
Wire Configuration: 3-wire plus ground
Cord Length: 10 feet
Includes: Control box, installation tape, electric tape
Warranty: 1 year
Buying Guide: How to Choose the Right Pump for a 400-Foot Well
Horsepower: The Foundation of Lifting Power
For a 400-foot well, horsepower (HP) is the single most important specification. A pump rated at 1 HP can typically lift water to around 200–300 feet, so for 400 feet you should consider at least 1.5 HP or higher. Many of the pumps we reviewed, such as the 2 HP models from Hallmark Industries and VEVOR, are specifically designed for deep wells. If you have a higher water demand (multiple bathrooms, irrigation), a 3 HP pump like the HoldwellS model can deliver ample flow.
Remember that horsepower alone isn’t everything — the pump’s head rating must exceed 400 feet with some margin. Always check the maximum head specification. For more on matching pump power to your well depth, see our article on well pump kits with pressure tanks.
Flow Rate: Gallons per Minute (GPM) Matters
Flow rate determines how quickly water fills your pressure tank and reaches your faucets. For a typical home, 10–15 GPM is sufficient; for larger properties or agricultural use, 30–40 GPM may be needed. The pumps in our lineup range from 10 GPM (the iMeshbean 1 HP) up to 37 GPM (the HoldwellS 3 HP and VEVOR 2 HP). Choose a flow rate that matches your peak water usage without overpowering your well’s recovery rate.
Voltage and Wiring: 110V vs. 230V
Most deep well submersible pumps are available in 115V or 230V configurations. For a 400-foot well, 230V pumps are generally more efficient because they draw lower amperage, reducing voltage drop over long cable runs. Several models we reviewed, including the Red Lion RL12G05-2W2V and the Hallmark Industries 2 HP, run on 230V. If your home only has 110V available, the iMeshbean 1 HP or the WASSERMANN 1 HP are solid 115V options — but be aware that they may have lower head capacities.
Also consider whether the pump requires an external control box. Two-wire pumps (like the Red Lion and WASSERMANN) have built-in capacitors, simplifying installation. For more on wiring and pressure tank setups, read our guide on well pumps for pressure tanks.
Well Casing Diameter: 4-Inch vs. 3-Inch
Your well casing size dictates which pump diameter fits. Most modern wells use 4-inch or larger casings, which accommodate standard 3.8–4 inch submersible pumps. If you have a 3-inch casing, you’ll need a narrower pump like the iMeshbean 3-inch model or the Hallmark Industries MA0459X-14A (3.3-inch max OD). Always measure your casing before buying — a pump that is too large will not fit, and one that is too small may reduce efficiency.
Final Thoughts
Selecting the right pump for a 400-foot well comes down to balancing horsepower, flow, voltage, and casing size. For most homeowners, the Red Lion RL12G05-2W2V Submersible Well Pump offers a reliable 1/2 HP solution with a built-in check valve and NSF certification for potable water — ideal if your well depth is closer to 200–300 feet and you need moderate flow. For those who truly need to lift from 400 feet with higher volume, the VEVOR Deep Well Submersible Pump (2 HP, 37 GPM, 427 ft head) delivers outstanding performance at a great value. Whichever you choose, verify your well specifications and consult a professional for installation to ensure years of trouble-free service.
Frequently Asked Questions
What size pump do I need for a 400 ft well?
For a 400-foot well, you generally need a submersible pump with at least 1.5 to 2 horsepower and a maximum head rating above 400 feet. Pumps with 2 HP and 400+ foot head, like the Hallmark Industries 2 HP or VEVOR 2 HP, are excellent choices. Always check the pump’s head specification to ensure it can handle your exact depth.
Is 1 HP enough for a 400 ft well?
Most 1 HP submersible pumps have a maximum head around 300 feet, so they are not recommended for a full 400-foot lift. However, if your well’s water level is only 200–250 feet deep and the total depth is 400 feet, a 1 HP pump might work — but you risk reduced flow and premature wear. For reliable performance, choose a pump with at least 1.5 HP or higher for 2026 installations.
What voltage is best for a deep well pump?
For deep wells over 300 feet, 230V pumps are preferred because they experience less voltage drop over long cable runs and are more energy-efficient. Many top-rated models in 2026 use 230V, including the Red Lion RL12G05-2W2V and the VEVOR 2 HP. If your electrical system is 115V only, consider a lower-horsepower pump and ensure your wiring is adequate.
How deep can a 1/2 HP submersible pump go?
A 1/2 HP submersible pump typically has a maximum head of about 200–250 feet. It is not suitable for a 400-foot well. For depths beyond 300 feet, we recommend at least 1.5 HP or higher. For more details on matching pump size to well depth, see our complete well pump guide.
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