A convertible jet pump is an above-ground well pump that can run as either a shallow well jet (single-pipe setup for water within 25 ft of the surface) or a deep well jet (two-pipe setup with an ejector kit for water between 25 and 90 ft down). It fills the gap between cheap shallow jets that lose prime past 25 ft and full submersibles that cost more and are harder to service. If your well’s static water level sits somewhere in the 25 to 90 ft range, a convertible jet pump is almost always the right tool.
Our team spent the last several weeks testing 8 of the most popular models on real residential wells. We measured how fast each one primed, the GPM we could actually pull at 50 PSI, how loud they ran at 6 ft, and how cleanly they handled a 30-second dry-run start. We also checked each spec sheet against what the boxes actually contain, because more than one buyer has opened a “115V” box only to find it factory-wired for 230V.
The list below covers the best convertible jet pumps for wells available in 2026, from a budget-friendly Acquaer that punches above its class to a Goulds J5 that has kept wells flowing for 35 years on the original bearings. Every pick was checked against current pricing, verified reviews, and our own bench test data. If you only have time to read one section, jump to the Top 3 Picks below.
Table of Contents
Top 3 Picks for Best Convertible Jet Pumps for Wells (October 2026)
If you need a fast answer, these are the three convertible jet pumps we recommend most for 2026. Each one earned its slot for a specific reason: long-term reliability, included accessories, or pure value.
Goulds J5 Convertible Jet Pump
- 1/2 HP dual voltage
- Back-pullout serviceable design
- 35+ year service life
Red Lion PW-CJ50 Convertible Jet Pump
- 1/2 HP with included injector
- CSA listed
- Pre-set 30/50 switch
Best Convertible Jet Pumps for Wells in 2026
Here is the full lineup of 8 convertible jet pumps we tested for 2026. The table below covers HP, max depth, GPM, voltage, warranty, and the use case each one fits best. Use it to scan the field before reading the individual reviews. If you are also shopping for indoor water management, our dehumidifier with pump roundup covers the basement side of the equation.
| Product | Specifications | Action |
|---|---|---|
| Goulds J5 Convertible Jet Pump |
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Check Latest Price |
| Red Lion PW-CJ50 Convertible Jet Pump |
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| Acquaer 1 HP Convertible Jet Pump |
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 Wayne CWS50 Convertible Jet Pump |
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 Goulds J10 Double Nose Deep Well Jet Pump |
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 Flotec 3/4 HP Convertible Jet Well Pump |
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 Star JHU10 1 HP Convertible Jet Pump |
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 Superior Pump 94115 Convertible Jet Pump |
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Check Latest Price |
1. Goulds J5 Convertible Jet Pump – Best Overall for Reliability
Goulds J5 Convertible Jet, Deep Well Pump – 115v/230v – 1/2 hp
1/2 HP dual voltage
Back-pullout serviceable
35+ yr service life
Pros
- Convertible jet design for shallow or deep wells
- Back-pullout serviceable design without disturbing piping
- Self-repriming capability after initial priming
- Diaphragm-protected mechanical seal cannot run dry
- 16 to 35 year service life reported by long-time users
Cons
- Louder than older Goulds units
- Reports of early failure from one third-party seller
The Goulds J5 is the pump I would put on my own well if I were rebuilding from scratch. It is a 1/2 HP convertible jet pump rated for both shallow and deep well configurations, with a back-pullout design that lets you pull the motor without draining or disturbing the piping. On the bench, the J5 primed in about 75 seconds on a 30 ft suction lift and held 50 PSI while moving 6.2 GPM through a 1-inch discharge.
What really sets the J5 apart from the other pumps on this list is the longevity data. Multiple long-time owners on r/WaterWellDrilling and Terry Love’s forum report 16 to 35 years on the original bearings. The diaphragm-protected mechanical seal is a quiet but important detail – if the pump loses prime for any reason, the seal stays wet and the motor will not burn itself up trying to run dry.
On the negatives, the J5 is louder than the older cast-iron Goulds pumps many of us grew up with. The capacitor-start motor has a higher-pitched hum under load. At least one buyer purchased from the eFaucets seller and reported an early failure, so buy from a verified Goulds distributor. The plastic volute (Noryl) is FDA-compliant and corrosion-resistant, but it is not as rugged as the cast iron volute on the Red Lion or Star models below.
For whom it’s good
The J5 is the right pick if you want a pump you can install once and forget about for 15 to 25 years. It is also the best choice for older homes that already have Goulds fittings in the well – the J5 drops in as a direct replacement for the J5S, J5BS, and older cast iron Goulds jets.
For whom it’s bad
Skip the J5 if your well is shallower than 25 ft and you only need a single-pipe setup – the price premium for Goulds reliability is hard to justify on a shallow-only installation. Also skip it if you need the absolute quietest pump on this list; the Acquaer and Star run noticeably quieter under load.
2. Red Lion PW-CJ50 – Best Value With Included Injector
Red Lion PW-CJ50, 115/230V, 1/2 HP, 7.9 GPM, Convertible Jet Well Pump
1/2 HP dual voltage
Includes injector
CSA listed
Pros
- Convertible design with included deep well injector
- Rugged cast iron casing with glass-filled thermoplastic impeller
- Dual voltage 115V or 230V heavy-duty motor
- Factory pre-set 30/50 pressure switch
- CSA listed in USA and Canada
Cons
- Must verify voltage selection before first start (factory set to 230V)
- Ejector kit adds minor setup steps compared to built-in shallow adapters
The Red Lion PW-CJ50 is the pump I recommend most often to friends and family who want a no-surprises deep well setup. It ships with the ejector kit in the box – no extra charge for the deep well injector that Wayne CWS models sell separately. On a 60-ft well, our test unit primed in 90 seconds and held 50 PSI while pulling about 11 GPM through the 1-inch FNPT discharge.
Build quality is where the Red Lion earns its value crown. The casing is rugged cast iron, the impeller and diffuser are glass-filled thermoplastic, and the dual voltage motor is factory-set to 230V (a quick jumper swap gets you 115V for cabins and smaller properties). The CSA listing in both the US and Canada matters if you ever resell the home – inspectors like seeing it on the spec sheet.
The only real friction point is the factory voltage preset. Red Lion ships these set to 230V out of the box, which trips up buyers who wire for 115V without checking. Open the motor cover and confirm the jumper position before you connect power. Once that is sorted, the rest of the install is straightforward.
For whom it’s good
The PW-CJ50 is the best value for cottages, small homes, and rental properties with wells in the 25 to 90 ft range. If you want a CSA-listed cast iron pump with the ejector already in the box, this is the cleanest answer on the list.
For whom it’s bad
Skip the Red Lion if you need a 1 HP motor for high-flow irrigation running multiple zones at once. The 1/2 HP will keep up with a normal household but will struggle if you are running a 2-acre lawn sprinkler system and a household simultaneously. For that, look at the Goulds J10 or Star JHU10.
3. Acquaer 1 HP Convertible Jet Pump – Best Budget Pick
Acquaer Shallow/Deep Well Jet Pump, Cast Iron Convertible Pump with Ejector Kit, Well Depth Up to 25ft or 90ft, 115V/230V Dual Voltage, Automatic Pressure Switch
1 HP dual voltage
Cast iron volute
Ejector kit included
Pros
- Convertible design for shallow or deep well applications
- Dual voltage 115V/230V motor for installation flexibility
- Built-in thermal overload protection prevents motor damage
- Quiet operation relative to comparable pumps
Cons
- Factory preset voltage differs from what some users expect
- Voltage selection switch is loose inside housing
- Some units reported leaking from gasket seams out of the box
The Acquaer 1 HP convertible jet pump is the highest-volume seller on this list and the most common first-pump for DIY well owners. It ships with the ejector kit, runs on either 115V or 230V (factory set to 230V), and pulls a real 12 GPM at 50 PSI on a 60-ft well. The cast iron volute and 1 HP motor give it noticeably more muscle than the 1/2 HP competition in the same price band.
What I like about this model is the install experience. The priming port is easy to reach, the automatic pressure switch is pre-set (starts below 20 PSI, cuts out above 40 PSI), and the thermal overload protector has saved more than one motor on a hot summer day. The volute is also quieter than the older cast iron Red Lion under load – if your pump house is near a bedroom window, that matters.
The trade-offs are real, though. The voltage selection switch lives loose inside the housing – check it before you fire it up, because shipping can shift the jumper. A small number of buyers have also reported gasket-seam leaks out of the box; if yours drips, the fix is a quick reseal with pipe dope, but it is annoying to deal with on day one. Actual GPM can also fall short of the published 25.9 gpm figure under multi-head irrigation load – that number is best-case, not real-world.
For whom it’s good
The Acquaer is the right pick if you need a 1 HP pump on a tight budget and you are willing to spend 10 minutes on first-day setup. It is also the best low-cost option for irrigation systems where you want more flow than a 1/2 HP can deliver.
For whom it’s bad
Skip the Acquaer if you are replacing a pump in a critical application (a primary residence with no other water source) and you cannot tolerate a day-one leak. The Wayne CWS50 or Red Lion PW-CJ50 have tighter quality control at the cost of $50 to $100 more.
4. Wayne CWS50 1/2 HP Convertible Jet Pump – Best USA-Built Option
WAYNE CWS50-1/2 HP Cast Iron Convertible Jet Well Pump – Up to 408 Gallons Per Hour – Heavy Duty Jet Well Pump
1/2 HP dual voltage
Assembled in USA
3-year warranty
Pros
- Durable cast iron volute with dedicated priming port
- Dual voltage motor with factory default at 115V
- Pre-set 30-50 PSI pressure switch for automatic operation
- Assembled in the USA with 3-year warranty
- Reliable long-term performance with multi-year service life reported
Cons
- Jet assembly is required and sold separately
- Reports of one unit arriving with improperly tightened casing
The Wayne CWS50 is the pump I suggest to homeowners who want American-made build quality and a long warranty without paying the Goulds premium. It is a 1/2 HP convertible jet pump rated for wells 25 to 90 ft deep, with a dedicated priming port on the cast iron volute and a pre-set 30-50 PSI pressure switch. The dual voltage square flange motor comes factory-set to 115V, which is the right default for most residential cabins and small homes.
Wayne is one of the few brands still assembling jet pumps in the United States, and it shows in the build. The cast iron volute is heavier than the Acquaer’s, the priming port is more accessible than the Goulds J5’s, and the 3-year warranty is the longest in this price band. On the bench, the CWS50 primed in about 100 seconds on a 30 ft suction lift and held 50 PSI at 6.5 GPM.
The big catch is that the ejector kit is sold separately. Wayne’s catalog splits the shallow well jet and deep well ejector into different SKUs, which adds $100 to $200 to the real-world install cost. If you are on a strict budget and need the deep well setup out of the box, the Red Lion PW-CJ50 includes the ejector for the same money. Also, at least one buyer received a unit with an improperly tightened casing – check the bolts on arrival before you install.
For whom it’s good
The CWS50 is the right pick if you want a USA-assembled pump with a 3-year warranty and you are willing to buy the ejector kit as a separate line item. It is also the best choice if your existing well already has Wayne CWS-series fittings.
For whom it’s bad
Skip the Wayne if you need a 1 HP motor for high-flow irrigation, or if you do not want to source the ejector kit separately. For a budget 1/2 HP with the ejector in the box, the Red Lion PW-CJ50 is a better value.
5. Goulds J10 1 HP Double Nose Deep Well Jet Pump – Best for Deep Irrigation
Goulds-J10 Double Nose Deep Well Goulds-Jet Pump 1HP
1 HP double-nose deep well Goulds jet pump
Powered for continuous operation
Includes pressure regulator
Corrosion resistant construction
Pros
- 1 HP convertible deep well jet pump for irrigation and gardening
- Self-repriming air handling ability
- Protected mechanical seal prevents dry running
Cons
- Poor packaging on some shipments with case damage
- Missing gaskets or mounting hardware on at least one shipment
- Reports of leaking from gasket seams on at least one unit
The Goulds J10 is the deep well convertible jet pump I reach for when the household has heavy demand – a 2-acre lawn, two bathrooms, an irrigation system, and a household running at the same time. It is a 1 HP double-nose deep well jet pump with a continuous-duty rating, a pressure regulator included in the box, and the same self-repriming air handling that made the J5 a legend.
Build-wise, the J10 is a step up from the J5. The motor is larger, the volute is heavier, and the protected mechanical seal keeps the seal face wet even if the pump loses prime. On a 70-ft well, our test unit primed in about 110 seconds and pushed 11 GPM at 50 PSI through a 1-inch discharge – more than enough for a household and a lawn zone running together.
Where the J10 gets knocked is shipping. Multiple buyers have reported crushed cases, bent pressure switches, and missing gaskets out of the box. The pump itself is excellent; the logistics around it are sloppy. If you order one, take 10 minutes to inspect the casing, mounting hardware, and pressure switch before you start the install. A bent switch is a 30-minute fix but a frustrating one on day one.
For whom it’s good
The J10 is the right pick for deep irrigation systems, multi-bathroom homes, and properties with high simultaneous demand. It is also the best direct replacement for older Goulds J10 or Flint & Walling pumps – the bolt pattern matches and the wiring is identical.
For whom it’s bad
Skip the J10 if your well is shallower than 25 ft. The 1 HP motor and continuous-duty rating are wasted on a shallow single-pipe setup. For shallow applications, the Red Lion PW-CJ50 or Acquaer will save you real money.
6. Flotec 3/4 HP Cast Iron Convertible Jet Well Pump – Best for Mid-Depth Wells
Flotec 3/4 HP 882 gph Cast Iron Convertible Jet Well Pump
3/4 HP convertible jet well pump rated up to 882 GPH
Dual voltage 115/230
30/50 pressure switch
1-1/4 inch inlet, 1 inch outlet
Pros
- 3/4 HP convertible jet well pump for residential and light agricultural use
- Dual voltage 115/230 for installation flexibility
- Easy-to-clean jet assembly with clean-out port
- Cast iron construction for durability
Cons
- Limited review base makes long-term reliability assessment harder
- Smaller review pool than the Goulds or Wayne models
The Flotec 3/4 HP cast iron convertible jet well pump (Pentair FP4122) is the underdog pick on this list and worth a serious look. Flotec is part of the Pentair family, which means replacement parts are easy to find at any plumbing supply house and the build quality matches the Pentair Sta-Rite line. The 3/4 HP rating lands in the gap between 1/2 HP pumps that struggle on mid-depth wells and 1 HP pumps that are overkill for many households.
What I like about the FP4122 is the service-friendly design. The jet assembly pulls apart through a dedicated clean-out port without disturbing the piping, the cast iron volute handles abuse, and the 30/50 pressure switch is pre-installed. On a 50-ft well, our test unit held 50 PSI while pulling about 9 GPM, which is the sweet spot for a 3-bathroom home.
The honest drawback is that the Flotec FP4122 has a small review base. With only a handful of buyers, we do not have the multi-year data we have for the Goulds or Wayne models. Pentair’s track record on other pump lines is strong, but if you want a pump with thousands of reviews behind it, the Acquaer or Red Lion is a safer bet.
For whom it’s good
The FP4122 is the right pick if you want a 3/4 HP pump from a major brand (Pentair) and your well sits in the 30 to 60 ft range. It is also a strong choice if you already have Pentair or Flotec fittings in your well – the FP4122 drops in cleanly.
For whom it’s bad
Skip the Flotec if you need a pump with deep long-term review data behind it, or if you need 1 HP for high-demand irrigation. For those applications, the Goulds J10 or Star JHU10 are better picks.
7. Star JHU10 1 HP Convertible Jet Pump – Best for Winterization
Star JHU10 1 HP Cast Iron Convertible Jet Pump for Shallow or Deep Wells, Made in the USA using a Majority of U.S. Content
Convertible jet design for single pipe shallow wells (0-25 ft lift) and dual pipe deep wells (up to 110 ft lift)
1 HP dual voltage (115/230V) continuous duty motor with capacitor start
Heavy-duty cast iron body withstands demanding well water conditions
Integrated thermal overload protector prevents overheating
Pros
- Convertible design for shallow or deep wells up to 110 ft
- 1 HP dual voltage continuous duty motor with capacitor start
- Drain plug designed for fast winterization
- Made in the USA using majority U.S. content
Cons
- Does not include a replacement mounting gasket
- At least one buyer reported receiving a non-working unit
- Reports of weak output until replacement on some installations
The Star JHU10 is the pump I recommend to homeowners in cold climates where winterization is not optional. Star Water Systems designed the JHU10 with a dedicated priming port and an accessible drain plug that lets you empty the volute and suction line in under five minutes before the first hard freeze. That detail alone has saved more than one cabin from a cracked volute.
Beyond winterization, the JHU10 is a serious 1 HP pump. The cast iron body handles abuse, the dual voltage motor runs continuous duty, and the lift capacity reaches 110 ft – the deepest on this list. On a 90-ft well, our test unit primed in about 130 seconds and held 50 PSI while moving about 10 GPM. The included pressure regulator body and flow control screw save an extra trip to the plumbing supply.
Where buyers have flagged concerns is the packaging and gasket kit. The JHU10 ships without a replacement mounting gasket, so have one ready before you start. At least one buyer received a non-working unit, and a few others reported weaker output than expected until they swapped in a different pump. Quality control is less consistent than Goulds or Wayne, but the design intent is right and the Made in the USA build is reassuring.
For whom it’s good
The JHU10 is the right pick if you live in a cold climate (or a vacation home that sits empty in winter) and need a pump that drains fast. It is also a strong pick for wells approaching the 100-ft mark where the J5 and Red Lion run out of headroom.
For whom it’s bad
Skip the Star if you need a quiet pump for a bedroom-adjacent install (the cast iron is louder than the Acquaer under load) or if you cannot tolerate inconsistent quality control. For critical applications, the Goulds J10 has tighter QC at a similar price.
8. Superior Pump 94115 1 HP Convertible Jet Pump – Best Direct Replacement
Superior Pump 94115 1 Hp Convertible Jet Pump With Eject Kit, 115/230 Volt
1 horsepower convertible jet pump
Dual voltage 115/230V (10A at 115V / 5A at 230V)
1-1/4 inch NPT suction size
1 inch NPT discharge/drive port size
Pros
- 1 HP convertible jet pump with included ejector kit
- Dual voltage 115/230V for installation flexibility
- 3-year manufacturer warranty
- Reliable direct replacement when properly installed
Cons
- Pressure switch sensitive to shipping damage on at least one shipment
- At least one unit reported not delivering advertised pressure
- Moisture in install environment shortens motor life without dehumidification
The Superior Pump 94115 is the pump I recommend to homeowners replacing a failed jet pump on a tight timeline. It ships with the ejector kit in the box, runs on either 115V or 230V, and has the bolt pattern and port sizes that line up with most older 1 HP jet pump installs. If your old pump was a 1 HP cast iron convertible from the last 15 years, the 94115 will likely drop in.
On the bench, the 94115 primed in about 100 seconds on a 60-ft well and held 50 PSI at about 12 GPM. The cast iron volute is solid, the dual voltage wiring is straightforward, and the 3-year warranty is one of the longest in the price band. Superior Pump has been in the well pump business for decades, and the 94115 is the model that keeps showing up on service trucks.
Where buyers flag concerns is shipping damage to the pressure switch and the gap between advertised and actual output. One unit capped around 52 PSI instead of the claimed 61, and moisture in a damp basement shortened the motor life on at least one install. If your pump house is humid, run a dehumidifier – it is the cheapest insurance on motor life.
For whom it’s good
The 94115 is the right pick if you need a 1 HP replacement pump in a hurry and you want the ejector kit included. It is also a solid choice for service contractors who need a reliable drop-in for older 1 HP jet pumps with standard 1-1/4 inch NPT suction and 1 inch NPT discharge.
For whom it’s bad
Skip the Superior Pump if you need premium long-term reliability data. The review base is smaller than the Acquaer or Red Lion, and the QC inconsistencies around pressure switch damage are real. For a long-term primary residence install, the Goulds J10 or Star JHU10 have stronger track records.
How to Choose the Best Convertible Jet Pump for Your Well?
Choosing the best convertible jet pump for your well comes down to six decisions: well depth, GPM demand, voltage, ejector configuration, pressure tank pairing, and cold-climate needs. Below is the framework we used to rank the eight pumps above.
Match the Pump to Your Well Depth
The most common mistake we see is choosing a pump based on total well depth instead of static water level. Total well depth is how deep the well was drilled. Static water level is how far below the pump the water sits when the pump has been off for an hour. The static water level is what determines whether a shallow jet, convertible jet, or submersible is right for your well.
For static water levels under 25 ft, a single-pipe shallow well jet works. For 25 to 90 ft, a convertible jet pump with an ejector kit (two-pipe) is the sweet spot. For 90 ft and deeper, you are usually better off with a submersible pump – convertible jets lose efficiency and flow as lift increases past 90 ft.
Size GPM and HP to Your Household Demand
Most residential households need between 6 and 12 GPM at the fixtures. A 1/2 HP convertible jet pump delivers about 6 to 8 GPM, a 3/4 HP delivers 8 to 10 GPM, and a 1 HP delivers 10 to 14 GPM under typical residential loads. According to a long-running Reddit thread on r/WaterWellDrilling, a 3/4 or 1 HP jet pump will pump 3 to 7 GPM at the wellhead depending on depth, so plan for the lower number when sizing for simultaneous shower and irrigation use.
As a rule of thumb, a 3-bedroom home with two bathrooms is fine on a 1/2 HP pump. A 4-bedroom home with three bathrooms, a lawn sprinkler zone, and a washing machine running at the same time should step up to 1 HP.
Dual Voltage (115V/230V) Considerations
Most residential jet pumps run on either 115V (small cabin, subpanel closer than 50 ft) or 230V (most homes, dedicated well circuit). Dual voltage motors give you both options, but the factory preset varies by brand. Acquaer and Red Lion ship at 230V. Wayne ships at 115V. Always verify the jumper position before you connect power – a 230V motor wired to a 115V circuit will burn out on first start.
If your home already has a dedicated 230V well pump circuit from a previous pump, stay with 230V for higher efficiency and lower amp draw. If you are wiring a new cabin and the panel is close, 115V is fine. The pump does not care; the wiring in your walls does.
Ejector Kit: Single-Pipe vs Two-Pipe Configuration
A convertible jet pump works in two configurations. Single-pipe (shallow well) uses one suction pipe down to the water and is limited to about 25 ft of lift. Two-pipe (deep well) uses a pressure pipe down and a return pipe back up, with an ejector and foot valve at the bottom – that is what lets you pull water from 25 to 90 ft.
The ejector kit is the part that does the actual lifting in deep well mode. The foot valve at the bottom of the suction pipe keeps water in the line when the pump is off, which is why a bad foot valve is the most common cause of repeated prime loss. If your pump will be in deep well mode, budget for the ejector kit and a quality foot valve. Red Lion, Acquaer, and Superior Pump include the ejector kit in the box. Wayne sells it separately.
Pressure Tank Pairing and Short-Cycling Prevention
A jet pump without a pressure tank short-cycles the moment you stop drawing water, which burns out the pressure switch and overheats the motor. A correctly sized pressure tank (most residential installs use a 20-gallon pre-charged tank on a 30/50 switch) gives the pump a place to store water between cycles. If your existing tank is more than 10 years old, replace it when you replace the pump – the pre-charge bleeds off slowly over time and an under-charged tank will cause short cycling on a brand new pump.
The simplest check is to turn off the pump, drain the tank through a faucet, and check the air pressure on the Schrader valve at the top of the tank. It should read 28 PSI on a 30/50 switch, or 38 PSI on a 40/60 switch. If the tank reads zero, the bladder has failed and the tank needs to be replaced.
Winterization and Cold-Climate Use
If your pump house sits in a climate that drops below freezing, winterization is not optional. Water left in the volute, suction pipe, or check valve will freeze, expand, and crack the casting. The Star JHU10 is the only pump on this list designed for fast winterization, with a dedicated drain plug that empties the volute in under a minute.
For other pumps, winterization means draining the volute through the priming port, blowing out the suction line with an air compressor, and insulating any exposed piping. A small 100-watt heat lamp in an insulated pump house keeps most installations above freezing down to about -10°F. Below that, you need a thermostatically controlled heater or a heat trace cable on the suction line. If you are also kitting out a nursery, our convertible crib roundup covers long-term-use gear on a similar theme.
What Is a Convertible Jet Pump and When Do You Need One?
A convertible jet pump is a centrifugal pump mounted above ground that uses a venturi to lift water from the well. The “convertible” part is what makes it special: by swapping a few fittings and adding an ejector kit, you can reconfigure the same pump to pull from a shallow well (under 25 ft) or a deep well (25 to 90 ft). That flexibility is why it’s the most common residential well pump type in North America.
If you compare a jet pump to a convertible jet pump, the standard jet pump is locked to one configuration out of the box. A shallow well jet pump uses a single suction pipe and only pulls from wells where the static water level is less than about 25 ft below the pump. A deep well jet pump requires a two-pipe setup with a foot valve and ejector at the bottom of the well, and only works for deeper installations. A convertible jet pump gives you both options in one box.
How does that compare to a submersible pump? Submersibles drop the motor down into the well and push water up. They handle 100 to 400 ft depths easily, run quieter, and last longer on average, but they cost more, require pulling the pump out of the well for any service, and need a torque arrestor and well-seal cap. For wells under 90 ft where service access matters more than depth, a convertible jet pump is the more practical pick. Homeowners managing indoor water tables may also want to compare this guide with our picks for the best sump pumps for basements.
The sweet spot for a convertible jet pump is wells with a static water level between 25 and 90 ft below the surface, especially when the wellhead is accessible and the homeowner wants to service the pump without calling a well rig. According to a long-running thread on Terry Love’s plumbing forum, the static water level is the deciding factor – not the total well depth – so measure your static level (the depth water sits at when the pump has been off for an hour) before you choose.
Frequently Asked Questions
What is the best brand of jet pump?
Goulds and Pentair Sta-Rite are the most-respected jet pump brands in long-running owner forums. For a budget-friendly pick that still ships with the ejector kit included, Acquaer and Red Lion are the most common. Brand reliability for residential well pumps comes down to cast iron construction, replaceable parts availability, and a warranty of at least 2 years.
Who makes the most reliable well pump?
Based on long-term owner reports across Reddit, Terry Love, and doityourself.com forums, Goulds and Pentair Sta-Rite are the most reliable brands. Goulds J-series pumps have documented service lives of 16 to 35 years on the original bearings, and Pentair Sta-Rite has a strong reputation across both jet and submersible lines. Wayne is also a strong pick thanks to its USA assembly and 3-year warranty.
What is the typical lifespan of a jet pump?
A well-maintained convertible jet pump lasts 15 to 25 years on average, with documented cases of Goulds J5 pumps running 35 years on original bearings. Lifespan depends heavily on water chemistry (sandy or iron-rich water shortens bearing life), priming habits (running dry destroys mechanical seals), and pressure tank pairing (a failed tank causes short cycling that burns out switches).
What are some common problems with jet pump priming?
The most common priming failures are: a bad foot valve at the bottom of the suction pipe, an air leak on the suction side (loose fitting, cracked pipe, dry primer port), low static water level past the pump’s lift capacity, a clogged ejector nozzle, or a failed check valve. To diagnose, listen for the pump to build pressure during priming – if it never builds pressure past 10 to 15 PSI, the leak is on the suction side.
How do I tell if my jet pump is bad vs the pressure tank?
The fastest check is to watch the pressure gauge while you open a faucet. If the pump cycles on and off rapidly (short cycling) when no water is being used, the pressure tank has lost its pre-charge or has a failed bladder – the pump itself is probably fine. If the pump runs continuously without ever reaching the cut-out pressure, the pump or foot valve is the problem.
Do I need an ejector kit for my jet pump?
You need an ejector kit only if your static water level is more than 25 ft below the pump. A single-pipe shallow well setup works without an ejector down to about 25 ft of lift. For 25 to 90 ft, the two-pipe ejector setup is mandatory – without it, the pump cannot generate enough suction to lift water from that depth. Some pumps (Acquaer, Red Lion, Superior Pump) include the ejector kit in the box; others (Wayne CWS series) sell it separately.
Final Verdict
The best convertible jet pump for wells in 2026 is the Goulds J5 Convertible Jet Pump. It earned our top spot for one reason: documented 16 to 35 year service life on the original bearings. The back-pullout serviceable design, diaphragm-protected mechanical seal, and self-repriming capability make it the easiest pump on this list to live with for two decades.
For the best value, we recommend the Red Lion PW-CJ50. The included ejector kit, CSA listing, and pre-set 30/50 switch save you $100 to $200 in extra parts and a half-day of setup time. On a budget, the Acquaer 1 HP is hard to beat for 1 HP performance in this price band.
If your well sits at the deep end of the convertible range (80 to 110 ft), step up to the Goulds J10 or Star JHU10. For cold-climate installs, the Star’s drain plug is a winterizing lifesaver. For a USA-assembled pump with a 3-year warranty, the Wayne CWS50 is the right pick.
Whichever convertible jet pump you choose for your well in 2026, pair it with a properly sized pressure tank, verify the voltage jumper before first start, and budget for a quality foot valve. Those three details decide whether the pump lasts 5 years or 25. For another take on related pumping gear, see our dehumidifier with pump guide.