The shower goes icy-cold, pressure drops to a whisper, and then silence. That silence means one thing for a well-dependent home: life just got complicated. A failed submersible doesn’t wait for payday or cooler weather. Water for the kitchen, laundry, livestock, and showers stops immediately. In those moments, the difference between “some pump” and a properly sized, properly built Myers water well pump shows up fast—and the model number tells the truth if you know how to read it.
Two evenings ago just outside Stevens Point, Wisconsin, Andriy Kovalchuk (38), a licensed electrician, and his wife Lila (36), a night-shift nurse, lost water mid-laundry. Their 240-foot well had been running a budget 1 HP Red Lion that cracked at the housing seam after only two years. With Maksim (8) and Elya (5) needing showers for school and Lila heading to a shift, the family needed a reliable drop-in replacement—now. When Andriy called me at PSAM, he had three photos: the old pump’s nameplate, the well report, and a rough sketch of his pressure system. That’s all I needed—because with Myers, the model number is your roadmap.
In this guide, I’ll decode a Myers model number from front to back so you can match series, GPM, horsepower, wire configuration, staging, and materials to your exact well. We’ll cover the Predator Plus series identifier, GPM codes, horsepower and voltage, wire type (2-wire vs 3-wire), stages for TDH, discharge size and NPT, materials and corrosion resistance, motor pairing (Pentek XE), certifications and warranty, and common suffixes for kit and packaging. Along the way I’ll point out the traps I see with other brands, and why a properly selected Myers well pump is worth every single penny.
Before we dive in, a few credentials you should bank on: Myers’ Predator Plus Series delivers 80%+ efficiency near BEP, carries an industry-leading 3-year warranty, is backed by Pentair’s engineering, and is proudly Made in the USA with UL/CSA certifications. From where I stand—over decades in trenches and pump houses—that combination is exactly what rural homes need.
#1. Start With the Series Tag – Predator Plus Series and 4-Inch Submersibles
A model number’s first block identifies what family of pump you’re buying—the most important clue to performance and build quality. If you see “Predator Plus” or a code pointing to Myers’ 4-inch submersible family, you’re starting in the right place.
- Myers’ flagship submersibles are the Predator Plus Series: a submersible well pump line built for residential reliability with 300 series stainless steel construction, Teflon-impregnated staging, and field serviceable design. Series identifiers ensure you’re matching your replacement to the right geometry and performance range. In practical terms, the series tag confirms it fits a standard 4" well casing, uses a 1-1/4" NPT discharge size, and pairs directly with a Pentek XE motor engineered for high thrust.
Andriy texted me the old label with “4” casing noted but no clear series. Because his well is 240 feet and uses 1-1/4" drop pipe, the Myers Predator Plus Series was the perfect series target for performance and straightforward installation.
How To Spot It on the Label
Look for wording like “Predator Plus” or a first code block that PSAM associates with the 4-inch submersible family. This confirms compatibility with typical pitless adapters, torque arrestors, and drop pipe kits.
Why Series Matters
Series determines impeller geometry and hydraulic limits. Choose a series designed for residential clean water with the right shut-off head and GPM curves to avoid chronic short-cycling or underperformance.
Rick’s Pro Tip
If in doubt, send PSAM a label photo. We cross-reference your model code against Myers’ pump curve charts so you don’t guess. A series mismatch is the #1 cause of wasted time on emergency replacements.
#2. Decode the GPM Code – Matching “7, 10, 15, 20 GPM” Performance to Household Demand
Right after the series block, Myers model numbers typically include a GPM indicator—often 7-8, 10, 15, or 20+ GPM families. That number sets your flow profile and influences pressure at your Total Dynamic Head (TDH).
- In plain terms: a GPM rating is your flow family, not a flat promise at all depths. A “10 GPM” pump will deliver close to that only within the sweet spot of its pump curve. At 240 feet TDH, it might deliver 7–9 GPM; at shallower heads, it may exceed 10. A typical home needs 6–12 GPM depending on fixture count, irrigation, and livestock. For Andriy’s family of four, a 10 GPM curve was ideal—enough for laundry plus a shower while staying efficient near BEP.
Interpreting “10 GPM” in Real Life
- A 10 GPM model provides great balance of efficiency and head for 150–300 ft wells. If you irrigate or fill large troughs, consider the 15 GPM family and upsize staging accordingly.
GPM vs Head: Don’t Confuse the Two
Flow families perform differently as head increases. Always cross-check the GPM code against your calculated TDH to ensure the curve intersects your household’s real-world demand.
Rick’s Pro Tip
Tell us your static water level, pumping level (if known), and pressure switch setting (40/60 is common). We’ll map the GPM family to your exact operating point—no guesswork.
#3. Horsepower and Voltage – Reading 1/2 HP to 2 HP, 115V vs 230V, and Amperage Draw
The horsepower block in a Myers model number sets the motor’s muscle. Combine that with voltage to confirm wiring and control compatibility upfront.
- Myers submersibles in the Predator Plus line cover 1/2 HP, 3/4 HP, 1 HP, 1.5 HP, and 2 HP at 115V or 230V (most deep wells use 230V single-phase). More head and higher GPM typically require higher HP and more stages. Andriy’s 240-ft system needed a 1 HP motor at 230V. That gives headroom for a 40/60 pressure switch and about 7–10 GPM at operating head.
HP Selection Mechanics
- HP affects the motor’s ability to maintain pressure and flow at depth. Too small, and you get long runtimes and frequent pressure drops. Too big, and you waste electricity and risk rapid cycling.
Voltage Clarity
Myers labels include voltage so you can confirm breaker, wire gauge, and splice kit compatibility. For most deep wells, 230V is king—more efficient at long cable runs and lower amperage.
Rick’s Pro Tip
Check the amperage draw on the nameplate and compare to wire length and gauge. Undersized wire over 200 ft runs can rob motors of voltage, shortening life.
#4. Wire Configuration – 2-Wire vs 3-Wire Model Codes and Control Box Planning
This part of a Myers model number tells you whether you’re installing a 2-wire well pump or a 3-wire well pump. The difference affects startup capacitors, control boxes, and troubleshooting later.
- A 2-wire configuration (plus ground) has the starting components integrated in the motor. A 3-wire configuration uses an external control box with start/run capacitors at the surface. For emergency swaps, 2-wire is simple: no control box to source, fewer components to fail, and often lower upfront cost. For complex diagnostics or very deep installs, some pros prefer 3-wire for easier service.
Andriy’s old Red Lion was a 2-wire. We matched the Myers model to 2-wire at 230V to avoid rewiring or a surface control box change during their time-sensitive swap.
How to Read the Wire Code
Look for a letter/number position that https://www.plumbingsupplyandmore.com/submersible-well-pump-predator-plus-series-15-stages-1-hp-8-gpm.html specifies 2W or 3W. When in doubt, PSAM’s product page lists the configuration, plus compatible control boxes if 3-wire.
Pros and Cons
- 2-wire: Simpler, lower initial cost, excellent for most homes. 3-wire: External capacitors accessible, good for certain diagnostic routines.
Rick’s Pro Tip
If your control box is weather-beaten, upgrade with the pump. One truck roll, one fix, and you’re done.
#5. Stages and TDH – The Stage Count in the Model Number Drives Pressure at Depth
Stage count—often embedded as a two-digit block in the model—tells you how many impellers are stacked in the multi-stage pump. More stages equal more head (pressure) for the same GPM family.
- A “15-stage” 10 GPM submersible can deliver the pressure you need at 250–300 feet where a “7-stage” would stall out. This is how you right-size a 1 HP pump for deeper wells without oversizing horsepower. In Myers nomenclature, the model will indicate stage count or an equivalent code matched to a curve. That’s your signal the pump can reach your target TDH (total dynamic head).
For Andriy’s 240 ft well balanced at a 40/60 switch (roughly 230–260 ft TDH including friction), we selected a 10 GPM family with higher stages paired to 1 HP. That combination lands right near BEP for efficiency and long life.
How to Calculate TDH Quickly
Add lift (pumping level to tank), pressure (psi x 2.31), and friction losses. Don’t guess—use a quick worksheet or call us.
When to Add Stages
If you’re close to the top of a curve at your target GPM, add stages before jumping horsepower. It’s a cleaner, more efficient fix.
Rick’s Pro Tip
A stage-rich 1 HP at 230V often beats jumping to 1.5 HP for residential wells in the 200–300 ft range.
#6. Materials and Corrosion Resistance – 300 Series Stainless, Composite Impellers, and Longevity
The material block isn’t always spelled out in the model string, but series and suffixes confirm the build: 300 series stainless steel, engineered composite impellers, Teflon-impregnated staging. Myers makes this crystal clear across Predator Plus documentation—and it matters.
- Stainless components (shell, discharge bowl, shaft, coupling, wear ring, suction screen) fight aggressive water chemistry and grit. Composite, self-lubricating impellers ride cleaner even when a bit of sand shows up, protecting bearings and seals for the long haul. Less corrosion and better bearing support equals quieter operation and longer motor life. That’s how Myers submersibles see real-world 8–15 years, and with care, 20–30.
The Kovalchuks have iron and moderate hardness in central Wisconsin. Myers’ stainless against that environment is a proven combination.
What to Check on the Carton
Look for “stainless steel construction” and “Teflon-impregnated staging.” If you can’t find it on the label, it’s in PSAM’s specs and the Myers data sheet.
Why It Pays Off
Fewer pull-outs. Less wear. A motor that runs cooler because the hydraulics remain efficient. Maintenance goes down, lifespan goes up.
Rick’s Pro Tip
Pair stainless with an oversized intake screen and torque arrestor to guard against sand surge during heavy irrigation or drought periods.
#7. Discharge Size, NPT, and System Fit – 1-1/4" NPT Threads, Tank Tees, and Drop Pipe Matching
Buried in the model details and confirmed on the spec sheet is your discharge size—typically 1-1/4" NPT for a 4-inch Myers submersible. That spec drives compatibility with your drop pipe, pitless adapter, and tank tee.
- If your existing pitless is 1", step-up fittings add turbulence and friction losses. A correctly sized 1-1/4" NPT connection cleaned up with proper adapters keeps flow smooth and pressure stable. For Andriy, moving from a makeshift 1" adapter back to 1-1/4" NPT at the pump removed a bottleneck, adding about 0.5–1.0 GPM at the same head.
What to Confirm Before You Pull the Old Pump
- Pitless adapter size and thread condition Drop pipe diameter and schedule (PVC vs poly) Check valve placement and condition
Threaded Assembly Advantage
Myers’ threaded assembly makes on-site service straight-forward. If you ever have to rebuild a stage stack or swap a discharge head, you’re not locked into proprietary hardware.
Rick’s Pro Tip
Always install a new check valve at the pump and verify a secondary check topside only if the system design calls for it. Wrong check placement creates water hammer.
#8. Motor Pairing and Protection – Pentek XE High-Thrust, Thermal Overload, and Lightning Safeguards
In Myers model numbers and documentation, you’ll see motor pairing details—specifically the Pentek XE motor on Predator Plus pumps. This is not marketing fluff; it’s the hidden reason these assemblies last.
- Pentek XE delivers high thrust handling, excellent rotor balance, and thermal overload protection, along with lightning protection features that matter in the Midwest and Mountain West. High-start torque, smooth acceleration, and cool running protect windings and bearings. On the nameplate, match HP, voltage, and phase, then confirm the motor family (Pentek XE for premium builds). A perfect pairing yields quieter starts, reduced current spikes, and fewer nuisance trips.
A dry August thunderstorm rolled across Portage County just last year and blew out half a dozen cheap submersibles within miles. Myers + Pentek XE units on surge-protected circuits rode through it. That’s not luck; it’s engineering.
What the Motor Line Item Tells You
HP, voltage, and duty. With Myers, it also signals you’re buying top-tier thrust capacity appropriate for deeper wells.
Surge and Overload Reality
Even the best motor benefits from a quality surge protector. Pair with a clean, tight splice and verified ground continuity.
Rick’s Pro Tip
Spend the extra ten minutes to bond and ground correctly at the well head. Motor survivability depends on it.
#9. Certifications, Warranty, and Country of Origin – Reading the Quality Signals in the Code
Myers publishes quality signals in their labels and data: Made in USA, UL listed, CSA certified, and the standout 3-year warranty. You won’t always see each tag inside the model string, but Myers doesn’t hide them—they’re front and center on documentation and cartons.
- A 36-month warranty is a strong promise. It reflects confidence in materials, staging, and motor pairing. In the real world, that means fewer fights over coverage and faster resolutions if something does go wrong. For the Kovalchuks, that warranty and domestic build sealed the decision. With kids and shift work, downtime is costly; they can’t afford repeat failures.
How to Verify
Check the spec sheet on PSAM, the carton, and the nameplate. Keep your proof of purchase and installation notes for warranty purposes.
Why It Matters
Longevity isn’t just materials; it’s the company behind them. Pentair’s backing with Myers Pumps gives you stable parts support and trustworthy curves.
Rick’s Pro Tip
Register your pump and save a phone photo of the nameplate in your cloud. It’s a five-minute task that saves headaches.
#10. Common Suffixes and Kit Codes – Control Boxes, Cord Lengths, and Accessory Bundles
Finally, Myers model numbers and PSAM SKUs may include suffixes indicating packaging, cord length, or kit contents. These save trips and myers grinder pump keep an emergency install on schedule.
- Suffixes may denote “with control box,” “with check valve,” or extended cord options. Packaging codes also confirm factory tested assemblies and specific manuals included. For Andriy, the right bundle meant pump, wire splice kit, torque arrestor, safety rope, and a fresh pressure switch in one order. Less scrambling, faster water-on.
What to Ask When You See a Suffix
- Does this include a control box (for 3-wire)? Is the drop cable length sufficient for my depth? Are the right accessories pre-matched?
Bundle Value
Time is money—and water. A complete kit paired to your model code prevents last-minute store runs and risky improvisations.
Rick’s Pro Tip
If you’re replacing in a hurry, buy the matched kit. If you’re planning an upgrade, customize component-by-component with PSAM guidance.
Detailed Competitor Comparisons (Where Myers Pulls Ahead)
Franklin Electric vs Myers: Control Ecosystem, Serviceability, and Cost of Ownership
Franklin Electric makes solid equipment, but I often see homeowners boxed into their proprietary control ecosystems. A Franklin submersible frequently pairs with specific control boxes, adding complexity and cost. By contrast, Myers Predator Plus submersibles leverage a broadly compatible approach, including simple 2-wire configurations that eliminate a surface box entirely. Material choices also diverge: Myers leans hard into 300 series stainless and Teflon-impregnated staging, protecting hydraulics against grit and wear. Efficiency near BEP reaches 80%+, helping reduce kWh over the service life.
In the field, Franklin’s dealer networks sometimes gatekeep service and parts. Myers’ field-serviceable, threaded assembly empowers any qualified contractor to rebuild a stage stack, swap a discharge head, or replace seals without scrapping the whole assembly. That autonomy translates to shorter downtime and lower labor bills for homes like the Kovalchuks’.
Looking five years out, those fewer service calls plus lower energy waste pay back the small price delta fast. With Pentair’s backing, a 3-year warranty, and PSAM’s fast-ship support, Myers is worth every single penny.
Goulds Pumps vs Myers: Material Durability in Tough Water
Goulds builds capable pumps, but several models still incorporate cast iron in areas that see corrosive attack. In wells with lower pH or elevated minerals, I’ve pulled Goulds units scarred by scaling and pitting. Myers’ unwavering choice of 300 series stainless for the shell, discharge bowl, coupling, and screen keeps those surfaces clean and resilient. Internally, Teflon-impregnated, self-lubricating impellers maintain clearances longer, protecting bearings and keeping curves true.
I see the difference especially in central and northern states with iron and hardness. Owners of Goulds units report declining pressure over time as stages wear or corrode. Myers submersibles, when specced correctly, maintain steady pressure and flow much deeper into their service life. PSAM’s replacement parts availability makes on-site fixes straightforward if needed.
Add the industry-leading 3-year warranty and Pentek XE motor pairing, and you get reliability you can bet the farm on. Across ten years, fewer pull-outs, steady energy use, and less corrosion make Myers worth every single penny.
Red Lion vs Myers: Housing Integrity and Life Expectancy
Red Lion occupies the budget category with several thermoplastic components that simply don’t stand up to thermal cycling and deep-well pressures over time. I’ve pulled multiple Red Lion pumps with cracked housings or warped heads following high-demand seasons. Myers Predator Plus stainless shells shrug off those cycles, keep seals seated, and transfer heat predictably. That’s a major reason Myers units realistically deliver 8–15 years, with many cresting 20 with good care.
Serviceability also matters. When a Red Lion housing cracks, replacement is the only real option. Myers’ threaded assembly and stainless discharge heads are built to be repaired; you’re not married to full replacements. For the Kovalchuks, stepping away from thermoplastic eliminated their recurring failure pattern.
From first drop to year ten, less drama and steadier performance account for hundreds—often thousands—in avoided costs. Stainless, Pentek XE, and that 36-month warranty make Myers worth every single penny.
FAQs: Your Model Number Decoded and Your System Dialed
1) How do I determine the correct horsepower for my well depth and household water demand?
Start with TDH (total dynamic head) and desired flow (GPM). TDH equals vertical lift (pumping level to tank) plus pressure (PSI x 2.31) plus friction. A 240-foot pumping level and a 40/60 switch (approx. 60 PSI) yields roughly 240 + 138 = 378 feet before friction. For most homes, a 1 HP in the 10 GPM family handles 200–300 feet well when paired with the right stage count. If you irrigate or run multiple showers often, you might move to the 15 GPM family or add HP to maintain pressure. Myers pump curves chart flow vs head precisely. PSAM will plug your numbers into the curve and pick the right stages with a Pentek XE motor at 230V. My rule: if you’re barely meeting head at target GPM on the curve, either add stages within the same HP or step up HP by one tier.
2) What GPM flow rate does a typical household need and how do multi-stage impellers affect pressure?
Most households run reliably at 6–12 GPM. A three-bath home with laundry, dishwasher, and occasional outdoor use often likes the 10 GPM curve. Multi-stage impellers create pressure by stacking head from each stage; more stages push water higher at the same GPM family. For example, a 10 GPM, 15-stage Myers submersible can maintain pressure at 250+ feet where a 7-stage version of the same GPM family would sag. If you’re at 150 feet or less, fewer stages may suffice. Add 10–15% margin for friction and seasonal level swings. Myers’ Teflon-impregnated staging and self-lubricating impellers keep those clearances tight so you don’t lose pressure season after season.
3) How does the Myers Predator Plus Series achieve 80% hydraulic efficiency compared to competitors?
Efficiency comes from matched hydraulics and motor pairing. Myers optimizes impeller geometry within each GPM rating family so most homes operate near BEP. The Pentek XE motor converts electrical energy to shaft power efficiently with high-thrust bearings that don’t scrub away power as heat. Add 300 series stainless steel components that hold alignment under load, and engineered composite impellers that resist wear from fine grit. On the curve, you’ll notice a wide plateau near BEP; that’s where kWh per gallon drops. Over a year, operating near BEP can cut energy costs up to 20% vs a mismatched pump, especially in 230V single-phase residential systems.
4) Why is 300 series stainless steel superior to cast iron for submersible well pumps?
Submerged cast iron corrodes, pits, and scales in mineral-rich or acidic water. Those surface changes increase hydraulic drag and can seize components. 300 series stainless steel resists corrosion and maintains smooth, true surfaces. In a pump, that means discharge bowls don’t flake, shafts don’t pit, and suction screens don’t clog prematurely. Stainless also manages thermal expansion consistently, protecting seal integrity. In my field work, stainless is the difference between pulling a pump at year four for flaking and letting a pump run ten-plus years with only a check valve refresh. That’s why Myers builds the Predator Plus line in stainless where it counts.
5) How do Teflon-impregnated self-lubricating impellers resist sand and grit damage?
Myers’ Teflon-impregnated staging and self-lubricating impellers minimize friction at the wear ring and diffuser interfaces. When fine sand passes through, these materials resist abrasion that would otherwise widen clearances and flatten curve performance. Reduced friction also lowers heat generation, preserving nitrile rubber bearings and motor seals. Practically, if your well produces a teaspoon or two of fine grit per day, a Predator Plus will hold its head and GPM better than pumps using basic plastics or metal-on-metal interfaces. Still, protect the install: a quality intake screen, proper set depth, and a clean drop pipe install are essential.
6) What makes the Pentek XE high-thrust motor more efficient than standard well pump motors?
The Pentek XE motor is built for high-thrust loads encountered in multi-stage submersibles. Precision rotor balance, premium windings, and efficient insulation reduce I^2R losses. Built-in thermal overload protection prevents winding damage during brownouts or locked-rotor events. Lightning and surge resistance features help the motor survive spikes common in rural grids. Pair that with a pump matched to the motor’s torque curve and you’ve got smooth starts, minimal current spikes, and longer bearing life. In short, it’s a motor designed to convert amps to water—not heat.
7) Can I install a Myers submersible pump myself or do I need a licensed contractor?
If you’re comfortable with electrical work, plumbing, and lifting gear, a capable DIYer can install a Myers submersible safely. You’ll need a torque arrestor, check valve, wire splice kit, pitless adapter alignment, and correct pressure switch settings. That said, at 200+ feet, I recommend a licensed well contractor for safety and warranty clarity. A professional will calculate TDH, verify wire gauge for amperage draw at 230V, confirm discharge size, and document installation for the 3-year warranty. DIY or pro, PSAM provides curve charts and parts lists so your install is clean and compliant.
8) What’s the difference between 2-wire and 3-wire well pump configurations?
A 2-wire pump (plus ground) has internal starting components; wiring runs from breaker to pressure switch to the motor leads. A 3-wire pump requires an external control box with capacitors and relay at the surface. Advantages? 2-wire is simpler and often cheaper up front; fewer components to fail. 3-wire allows surface-level capacitor replacement and can make certain diagnostics easier. Myers offers both configurations so you can match your existing system. For the Kovalchuks’ emergency swap, a 2-wire AC electric pump minimized parts and had them back online the same afternoon.
9) How long should I expect a Myers Predator Plus pump to last with proper maintenance?
Realistically, 8–15 years is common in normal water chemistry, with many systems surpassing 20 years when sized correctly and protected. Longevity depends on installation quality—correct HP, adequate stages, clean splices, correct set depth, solid grounding, and matching pressure tank sizing to prevent rapid cycling. Myers’ field serviceable design and threaded assembly mean repairs are possible if something minor goes wrong mid-life. Keep records, flush sediment annually if needed, and replace worn check valves before they hammer your system.
10) What maintenance tasks extend well pump lifespan and how often should they be performed?
- Check pressure tank air charge annually (2 PSI below cut-in; e.g., 38 PSI for 40/60). Inspect well cap and electrical connections seasonally for moisture or insect intrusion. Verify the pressure switch contacts are clean; replace if pitted. Monitor pump cycling frequency; rapid short cycles may signal tank or switch issues. Add surge protection at the service panel and well circuit. These steps keep motors cool, switches accurate, and impellers within spec. In my experience, attention here pushes Myers units to the far end of their lifespan range.
11) How does Myers’ 3-year warranty compare to competitors and what does it cover?
Many budget brands offer 12–18 months. Myers provides a full 3-year warranty on manufacturing defects and performance issues. That’s not just paper—it reflects confidence in 300 series stainless steel, Teflon-impregnated staging, and Pentek XE motors. If something goes sideways, PSAM helps streamline claims and parts support. Pair the warranty with proper installation records and you’ll have real protection, not fine print.
12) What’s the total cost of ownership over 10 years: Myers vs budget pump brands?
Budget pumps may cost $200–$400 less at checkout but often run 3–5 years, sometimes less in deep wells or harsh chemistry. Factor two replacements, two pull-outs, and elevated energy use from worn stages, and you’re thousands behind. A properly sized Myers Predator Plus, installed right, commonly runs a decade plus with stable energy draw and minimal service. Even if the initial ticket is higher, you’ll win on labor savings, fewer emergencies, and steady utility bills. Over ten years, the Myers route is almost always cheaper—and calmer.
Conclusion: Model Numbers Aren’t Mystery—They’re Your Blueprint for Reliability
A Myers model number, decoded correctly, tells you everything that matters: series fit, GPM rating, horsepower, 2-wire vs 3-wire, stages for head, 1-1/4" NPT discharge, stainless build, and Pentek XE pairing. Read it once, match it to your well report and pressure settings, and you’ll know exactly why your Myers well pump outlasts and outperforms.
For the Kovalchuks, that translation meant a fast, confident upgrade from a cracked thermoplastic budget pump to a stainless Predator Plus that hits their 240-foot well square on the curve. Water back on. Laundry done. Showers hot. No drama.
If you’ve got a nameplate photo and a rough TDH, send them to us at PSAM. I’ll map your Myers pump to the curve, pull the right kit, and get it on a truck today. When the tap runs dry, quality and clarity are worth every single penny.
