The shower sputters, the pressure gauge flatlines, and the silence from the well is deafening. In my line of work, that’s the classic three-act play of a failed pump. When a house depends on a private well, water isn’t optional—it’s everything. The fastest route back to running faucets and a quiet pressure switch is an accurate gallons-per-minute (GPM) calculation and a pump you can count on for the long haul.
Two weeks ago, Mateo Velasco (37), an ag‑science teacher, and his partner, Ingrid Lund (35), a remote software QA analyst, called me from their 12-acre place near Colville, Washington. Their 240-foot well had stopped delivering. A cracked housing in their budget 3/4 HP unit stranded them during plumbingsupplyandmore.com laundry night, with two kids—Soren (8) and Lina (4)—and a full set of chores waiting. Their story isn’t rare; it’s exactly why I built the PSAM Myers GPM approach and why I recommend Myers Pumps when the stakes are high.
In this guide, I’ll show you the nine factors that matter most when using PSAM’s GPM calculator and selecting a pump that will last. We’ll cover how to match GPM to your fixtures, how to calculate TDH accurately, why materials like stainless steel matter, and the advantage of the Pentek XE motor. We’ll examine 2‑wire vs 3‑wire decisions, how staging and horsepower change pressure at depth, how to read a pump curve, and what warranty and serviceability really mean when your water supply is on the line. Whether you’re a first-time well owner or a contractor sizing replacements, this is the practical, field-tested roadmap I use every day.
Awards and achievements? Myers backs it with a 3‑year warranty, industry-leading efficiency, and Made-in-USA build quality under Pentair’s engineering umbrella. PSAM ships fast, stocks what pros install, and I’m here to help you avoid mis-steps that cost time and money.
Let’s get water flowing—reliably, efficiently, and for years.
#1. Start with Realistic Household Demand - Converting Fixtures to GPM the Right Way with a Submersible Well Pump
Getting GPM wrong guarantees frustration. Oversize it and you’ll short-cycle; undersize it and you’ll live at a trickle. Start by counting simultaneous uses and converting that to flow. A modern submersible well pump is most efficient near its intended GPM band, so a precise calculation matters to both pressure and longevity.
For the average rural home, 6–12 GPM is common. A two-bath ranch with irrigation zones can bump that higher. At PSAM, our calculator weighs fixture units against your pressure goals—usually 40/60 PSI—then sets a base flow target. In practice, a 3-bath home with laundry and a kitchen tap running together lands between 10–12 GPM. Dial in that number before you think horsepower or depth.
Mateo and Ingrid’s family hits peak draws at showers + dishwasher + hose bib, about 10–11 GPM. Their new Myers target was set to 10 GPM—right in the sweet spot for performance and efficiency.
Fixture Unit Reality vs. Peak Simultaneity
Plumbing codes map fixture units to probable simultaneous use. A home with two full baths, kitchen, and laundry may only see three fixtures at once. Translating that to gallons per minute usually yields 8–12 GPM. If you irrigate, plan separate zones so your domestic draw doesn’t get starved.
Pressure Expectations Shape Flow
Targeting 50 PSI at the tank with a 40/60 switch? That requires headroom from your pump, especially at higher floors. Every pound of pressure equals 2.31 feet of head. For a second story, add 10–15 PSI to your calculations to maintain shower comfort.
Irrigation and Livestock Add-Ons
Irrigation valves, drip manifolds, and livestock trough floats can add 3–6 GPM per active zone. Avoid the temptation to size for every zone simultaneously. Stagger zones and keep domestic priority. It’s cheaper and much more reliable day-to-day.
Key takeaway: Lock your household GPM target before touching horsepower. You’ll save money, electricity, and extend pump life.
#2. Total Dynamic Head (TDH) Matters Most - Turning Depth, Elevation, and Pressure into One Number with TDH (Total Dynamic Head)
The right pump doesn’t just hit a flow number; it has to do it against your system’s resistance. That’s where TDH (total dynamic head) takes center stage. TDH rolls together vertical lift, friction loss, and discharge pressure. Calculate it right and the pump curve tells you exactly which model lands on its best efficiency point (BEP) at your target GPM.
For a 240-foot well with a static water level at 90 feet and a waterline to tank elevation gain of 10 feet, start with 100 feet of lift. Add friction loss for piping and fittings (usually 10–20 feet depending on length and diameter). Finally, convert desired pressure (e.g., 50 PSI) to head—about 115 feet. In this example, TDH totals roughly 225–235 feet.
Mateo and Ingrid’s TDH penciled out at 232 feet. That pushed us toward a Myers 10 GPM selection with enough staging to sit near BEP at 10 GPM, keeping energy use low and motor temperature under control.
TDH Calculation Steps You Can Trust
- Vertical lift: From static water level to pressure tank centerline. Pressure conversion: PSI x 2.31 = feet of head. Friction loss: Pipe length, size, and fittings add 10–40 feet in most homes. Use PSAM’s calculator or call me; I’ll sanity-check your numbers in minutes.
Why BEP Protects Your Investment
Operating near BEP means cooler windings, less wear, and quieter runs. Tasks like laundry and showers feel better because the pump isn’t fighting itself. Expect better reliability and lower bills when you nail BEP.
Pro Tip: Don’t Ignore Seasonal Drawdown
If your water level drops 15–30 feet in summer, add that margin into TDH. It keeps you out of the red zone on hot days when irrigation is running.
Bottom line: Get TDH right first. Every other decision depends on it.
#3. Material Science Wins Underground - 300 Series Stainless Steel and Teflon-Impregnated Staging for Long Service
Submersible pumps live hard lives: minerals, grit, and continuous pressure cycling. That’s why 300 series stainless steel and Teflon-impregnated staging aren’t marketing fluff—they’re the difference between five years of anxiety and a decade of hot showers.
Myers builds the Predator Plus with stainless shells, discharge bowls, shafts, and suction screens. The engineered Teflon-impregnated staging uses self-lubricating, abrasion-resistant impellers that tolerate sand-laden water better than standard composites. Fewer wear points, tighter tolerances, smoother hydraulics—this is what keeps flows steady as the years roll on.
When the Velasco‑Lund family pulled their old pump, a cracked housing and galled impeller told the story. Their water carries a features of Myers pump submersible little grit and a touch of iron. Stainless staging was non-negotiable for the replacement.
Corrosion Resistance You Can Count On
Iron-laden or acidic water eats lesser metals. Stainless construction resists pitting and corrosion that can lock an impeller stack or blow a seal. It’s insurance built into the wet end.
Impeller Geometry and Wear
Self-lubricating impellers with Teflon impregnation glide through minor abrasion. That keeps efficiency high, protecting amperage draw and motor temperature over time. Translation: quieter operation and lower bills.
Service Life and Curve Retention
Degraded materials flatten a pump’s curve—pressure falls, cycles rise. Stainless and advanced composites hold performance. Your 10 GPM pump remains a 10 GPM pump years later.
Choose materials like a pro does. Underground is unforgiving; stainless wins.
#4. Motor Muscle Where It Counts - Pentek XE Motor, 230V, and the Right Horsepower for GPM at Depth
Voltage, horsepower, and motor design aren’t abstract. They decide whether your system hits pressure without cooking itself. Myers pairs the Predator Plus with the Pentek XE motor, designed for high thrust loads in multi-stage applications. At 230V, a properly sized motor delivers stable torque with sensible amperage, even as head pressure climbs.
For 8–12 GPM homes in the 150–300 foot class, 1 HP often lands squarely on the curve. Deeper TDH or higher flows (irrigation-heavy properties) may require 1.5 HP to stay efficient. Don’t guess—map your TDH and GPM to the curve and pick the motor that sits near BEP.
Mateo and Ingrid landed on a Myers Predator Plus 10 GPM, 1 HP, 230V pairing. It hits their 10 GPM target at 232 feet TDH without over-amping or running hot. That’s the sweet spot: power without punishment.
Why 230V Stabilizes Performance
At 230V, motors draw lower amperage for the same horsepower, keeping heat down and extending insulation life. Voltage sag from long runs is easier to manage, too—critical for properties with distant pump panels.
Pentek XE Advantages
High-thrust bearings, efficient windings, and thermal protection create a motor built for stacked impeller loads. It’s the right match when you’ve got a multi-stage pump doing real work every day.
When 1.5 HP Makes Sense
Deep TDH over 300 feet, multiple fixtures and irrigation, or three-story elevation gains can push you to 1.5 HP. Oversizing by half a horsepower is smart only when the curve proves it.
Right motor, right voltage, right curve position: that’s reliability.
#5. Read the Pump Curve Like a Pro - Using Pump Curve and TDH to Land on Best Efficiency Point
Every pump decision lives or dies on the pump curve. It plots flow (GPM) against head (feet), showing where the pump operates efficiently. Your job is to place your calculated TDH and target GPM on that curve and see where it lands. On the knee of the curve—BEP—you’re golden.
Myers publishes crystal-clear curves for the Predator Plus line. With PSAM’s calculator output (TDH and GPM), you can choose staging and horsepower that align with your home’s needs. Too far left (high head, low GPM) and you risk overheating. Too far right (high GPM, low head) and pressure suffers.
For the Velasco‑Lund home, we plotted 10 GPM at 232 feet; the Myers 1 HP 10 GPM model hits the knee confidently. That’s why their showers are steady even when the dishwasher flips on.
Curve Cross-Checking for Seasonal Shifts
Plan for a 10–20% TDH increase during summer drawdown or future irrigation. If your operating point slides off the knee, choose a model with a slightly higher head capability to keep efficiency in the safe zone year-round.
Amperage and Temperature Correlation
When you live left of the curve, motors get hot and amperage creeps up. That’s how windings decay. Correct placement keeps amperage inside nameplate ranges and makes your motor last.
Pressure Switch Settings and Curve Position
Changing a 30/50 to a 40/60 adds 23 feet of head demand. Check the curve again. A simple switch tweak can push you off BEP if you were marginal to begin with.
Master the curve, avoid guesswork, and enjoy smooth water service.
Detailed Comparison: Myers vs. Franklin Electric and Goulds on Curve Integrity and Real-World Efficiency
Material and motor synergy control curve stability over the years. Myers uses all- 300 series stainless steel wet-end components paired with the Pentek XE motor, hitting over 80% hydraulic efficiency near BEP on many Predator Plus selections. In the field, that holds pressure with lower amperage draw—exactly what cuts monthly energy costs. Franklin Electric builds strong motors, but many of their submersible packages lean on proprietary control ecosystems, adding cost and complexity when troubleshooting. Goulds’ legacy designs are solid, yet models with cast iron elements lose curve fidelity more quickly in iron-heavy or mildly acidic water.
Service-wise, Myers’ field-friendly design empowers qualified contractors to keep systems optimized without specialized dealer dependencies. That means faster fixes and lower lifetime service expense. Real homes don’t need lab conditions; they need a pump that stays on its curve in sand, iron, and seasonal drawdowns. In our installs across rural properties, Myers consistently minimizes nuisance cycling and maintains pressure at upper setpoints longer than competitor packages with mixed metallurgy.
For homeowners depending on a single well for everything, long-run curve integrity is the difference between another replacement and another decade. That reliability, backed by PSAM support and same-day shipping, is worth every single penny.
#6. Wiring Choices That Simplify Life - 2-Wire Well Pump vs 3-Wire Well Pump with Control Box
Wiring configurations shape installation cost, troubleshooting, and future flexibility. A 2-wire well pump integrates starting components in the motor; a 3-wire well pump uses an external control box. Both work—your scenario decides.
For straight-shot replacements or DIY-friendly jobs, 2-wire is clean and reliable. Fewer parts, fewer connections, and nothing to mount or weatherproof up top. For demanding depths or where diagnostics matter, 3-wire gives you an external start capacitor and relay. That can simplify future service.
On a 240-foot service with a modern motor like Pentek XE, I often pick 2-wire for families who want less to worry about. That’s what we did for Mateo and Ingrid: 2-wire, 230V, clean and simple.
When 3-Wire Shines
If your well head is remote, or you have a history of surge events, a 3-wire with accessible controls can make diagnostics faster. Contractors can swap a relay in minutes and have you pumping by lunchtime.
Voltage Drop Considerations
Long wire runs drop voltage. 230V helps both 2-wire and 3-wire systems, but always size copper correctly. Undersized runs heat motors and kill windings early.
Surge Protection and Lightning Events
Invest in panel surge protection and a quality ground. Pentek XE has internal protections, but an external suppressor is cheap insurance, especially in storm-prone regions.
Choose wiring based on your well’s realities and your appetite for maintenance. Simplicity is reliable.
#7. System Hardware That Protects Pumps - Pressure Tank Sizing, Check Valves, and Cycle Control
Pumps don’t die from hours; they die from starts. That’s why your pressure tank size and cycle strategy matter. More drawdown means fewer starts per day. Aim to keep starts under 300 daily for submersibles and far lower for deep systems with high TDH. Correct tank sizing smooths peaks and valleys so your pump runs in efficient, longer cycles.
Use a properly rated check valve at the pump, and let the system breathe from there—no in-line check valves near the tank that can trap pressure and cause water hammer. Good plumbing layout, a calibrated pressure switch, and clean piping reduce cycling and save motors.
We upsized the Velasco‑Lund tank during their Myers install. Result: fewer starts, tighter pressure band, and no more midnight switch chatter.
Pressure Tank Sizing Rule of Thumb
For a 10 GPM system at 40/60 PSI, target 20–25 gallons of usable drawdown. That may mean a nominal 60–80 gallon tank depending on brand and temperature. More drawdown is almost always better for submersible longevity.
Pressure Switch and Relief Valve
Set at 40/60 PSI for comfortable showers and appliance performance. Verify a working relief valve for safety. An out-of-calibration switch accelerates wear and masks deeper issues.
Cycle Stop Valves and Flow Control
In complex properties, a cycle control valve can flatten operation and reduce starts significantly. Size it to match your primary flow band—another place where plotting the pump curve pays off.
Treat the system holistically. Your pump will thank you with years of quiet service.
#8. Warranty, Serviceability, and True Cost of Ownership - 3-Year Warranty and Field-Friendly Threaded Assembly
Upfront price is only the beginning. Long-term value lives in warranty coverage and the ability to service without tearing the whole system apart. Myers backs Predator Plus with a 36‑month warranty and a threaded assembly that’s designed for field service. That’s not marketing copy—that’s Saturday saved when a component needs attention.
Compare that to limited 12–18 month coverages and non-serviceable designs, and you’ll see why pros choose longevity. Fewer pullings, fewer surprises, and better parts availability reduce ownership cost dramatically.
When we spec’d the Velasco‑Lund system, the warranty and serviceability weren’t afterthoughts. They were core to preventing another emergency weekend with zero water.
Why Field-Friendly Construction Wins
Threaded wet ends, accessible screens, and documented part numbers turn an outage into a repair—not a replacement. It keeps costs predictable and downtime short.
Documentation and Curves On-Hand
PSAM keeps spec sheets, curves, and parts lists at your fingertips. When you know what you own, you can fix what you need—fast.
Energy Efficiency Over Time
Systems that stay on their curves use less power. Mulitply a 10–15% energy reduction by 10 years and you’ll see why hydraulic efficiency is more than a buzzword.
Protect your budget and your weekends. Buy for serviceability from day one.
Detailed Comparison: Myers vs. Red Lion on Durability and Service Life Under Pressure Cycling
Pressure cycles and thermal expansion punish weak housings and thin components. Myers’ use of 300 series stainless steel across shell and discharge elements resists cracking and pitting, holding tolerances tight so impellers track true. Red Lion’s thermoplastic housings are lighter, but we’ve pulled too many with stress fractures at threaded connections or after rapid cycle periods. In iron-bearing or abrasive water, stainless wins—flow stays stable, amperage stays in range, and bearings live longer.
Real install differences are stark. In rural systems with 40/60 PSI switches, daily cycling adds up. Stainless wet ends paired with Teflon-impregnated staging shrug off micro-abrasion that chews through lighter plastics. Over 8–15 years, Myers keeps the curve while budget plastics drop performance and raise bills. We’ve seen septic pumps and irrigation boosters tolerate plastic; domestic well heads at 200 feet are a different game.
When water is non-negotiable, the extra service life and stability from stainless aren’t luxuries—they’re table stakes. Add PSAM’s quick ship and field support, and the value case is obvious: a Myers install is worth every single penny.
#9. Sizing by the Numbers, Not by Guess - From Calculator Output to a Myers Predator Plus Pick
All roads lead here: taking PSAM’s calculator output and turning it into a specific Predator Plus Series selection. With your GPM and TDH in hand, match the point to a curve and confirm horsepower and staging. Look for operation on or just right of the BEP knee for your most common duty cycle.
For 200–300 foot wells targeting 10 GPM, a 1 HP Predator Plus commonly lands well. If TDH pushes north of 300 feet or irrigation pulls big, step to 1.5 HP. Verify voltage—most residentials are 230V—and choose 2-wire or 3-wire based on your service philosophy.
The Velasco‑Lund home now runs a Myers Predator Plus 10 GPM, 1 HP, 230V, 2‑wire selection placed at 10 GPM and 232 feet—dead on the curve knee. Their laundry nights are incident-free, and showers aren’t negotiating with the dishwasher anymore.
Checklist Before You Order
- Confirm TDH with seasonal margin. Validate GPM against actual fixture simultaneity. Set pressure switch target (e.g., 40/60). Pick wiring configuration that fits service goals. Size the pressure tank for drawdown that curbs starts.
Installation Essentials
Use a properly rated pitless, torque control on the drop, correct wire gauge, and waterproof splice kits. Label your breaker and document your pump model and set depth.
PSAM Advantage
We stock the Myers builds contractors install most, publish curves and spec sheets, and ship same day on in‑stock items. If you need help mid-job, call me.
Run the numbers. Choose the curve. Install once.
Detailed Comparison: Myers vs. Franklin Electric on Control Ecosystems and Field Serviceability
The pump you can repair on-site beats the pump you must ship or source proprietary parts for. Myers’ threaded assembly makes field service straightforward—pull, repair, reinstall. Franklin Electric produces respected motors, but many submersible packages lean on proprietary control box components and dealer networks that can slow real-world repairs. In rural emergencies, speed is sanity.
Efficiency and protection are where the Pentek XE motor shines. With robust thermal and surge tolerances, these motors handle multi-stage thrust while holding amperage down at BEP. Too many proprietary ecosystems lock you into higher upfront costs and longer lead times for parts. Myers pairs openness with premium metallurgy— 300 series stainless steel and Teflon-impregnated staging—so the wet end resists the elements and maintains curve position.
For homeowners like Mateo and Ingrid, downtime means hauling water and rearranging life. The ability to keep a system running with locally available parts, PSAM inventory, and a contractor’s toolkit saves days and dollars over a decade. In reliability math that matters, Myers is worth every single penny.
FAQs: Expert Answers from Rick Callahan
1) How do I determine the correct horsepower for my well depth and household water demand?
Start with your required GPM and calculate TDH (total dynamic head): vertical lift from static water level to the tank, friction loss, plus discharge pressure (PSI x 2.31). Plot that point on the pump curve. If a 1 HP Predator Plus hits your GPM at that TDH near BEP, you’re set. If your point sits far left (too much head), step up to 1.5 HP. Example: A 220–260 foot system targeting 10 GPM at 40/60 PSI often lands on a 1 HP curve, while 300+ feet TDH or heavy irrigation zones may justify 1.5 HP. My recommendation: run PSAM’s calculator, then confirm against the specific Myers curve. Call me if your summer drawdown or elevation is unusual—I’ll sanity-check your numbers and prevent an oversize that short-cycles.
2) What GPM flow rate does a typical household need and how do multi-stage impellers affect pressure?
Most single-family homes run best at 8–12 GPM. Two-bath homes hit 8–10; three-bath with laundry and kitchen simultaneous use often benefit from 10–12 GPM. Multi-story or irrigation may push requirements higher. Multi-stage designs stack impellers to add head, not flow per impeller. That’s how a 10 GPM submersible still hits 50–60 PSI at depth. Matching your GPM target to a multi-stage pump that delivers the required head at that flow produces steady showers even when appliances run. If you target 10 GPM at 40/60 PSI, choose a Predator Plus model that places your operating point near the curve knee—maximum pressure stability and motor efficiency.
3) How does the Myers Predator Plus Series achieve 80% hydraulic efficiency compared to competitors?
Efficiency is a marriage of geometry and materials. Predator Plus uses precision-stacked, engineered stages with Teflon-impregnated staging to reduce internal losses while maintaining tight tolerances over time. Pair that with the Pentek XE motor designed for high-thrust applications and you get minimal slippage, cool operation, and lower amperage at BEP. Many systems lose efficiency as impellers wear or corrode—Myers’ 300 series stainless steel and advanced composites maintain curve fidelity for years. In practical terms, you get faster recovery, fewer starts, and 10–20% lower energy costs when sized correctly.
4) Why is 300 series stainless steel superior to cast iron for submersible well pumps?
Submersibles sit in oxygen-poor, mineral-rich water. Cast iron can corrode, pit, and seize stages—especially with iron or acidic conditions. 300 series stainless steel resists corrosion, holds tolerances, and prevents bearing and wear ring degradation. That material integrity keeps the pump curve intact longer, so your 10 GPM pump stays a 10 GPM pump. For wells with iron staining, sand, or pH drift, stainless is the difference between 4–6 years and 8–15 years of dependable service. It also simplifies service—components separate cleanly, threads don’t fuse, and screens don’t crumble during a pull.
5) How do Teflon-impregnated self-lubricating impellers resist sand and grit damage?
Abrasive particulates act like sandpaper. Teflon-impregnated staging offers a low-friction, wear-resistant surface that allows small grit to pass with minimal scoring. Self-lubricating properties reduce heat and galling under load, preventing the cumulative damage that flattens pump curves. Compared to standard composites, these impellers maintain hydraulic geometry better, which means steadier pressure and lower amperage years into service. If your well occasionally produces silt after storms or seasonal drawdown, this feature is not a luxury—it’s what protects the motor and preserves GPM.
6) What makes the Pentek XE high-thrust motor more efficient than standard well pump motors?
The Pentek XE motor uses optimized windings and high-thrust bearings designed for stacked-impeller loads. That translates to higher torque at lower amperage and cooler running temperatures at BEP. Internal thermal and surge protections add real-world resilience—especially during rapid cycles or minor voltage fluctuations. On a 230V circuit correctly wired with the proper gauge, the motor operates inside nameplate amperage even under higher head. Over time, cooler operation preserves insulation and extends service life, supporting the 8–15 year lifespan I expect from properly sized Myers installs.
7) Can I install a Myers submersible pump myself or do I need a licensed contractor?
If you’re experienced with electrical, plumbing, and well safety—and you have the right equipment—you can install a submersible. That said, most homeowners benefit from a licensed well contractor due to depth risks, electrical code compliance, and the need for the correct pitless adapter, torque control, and waterproof splices. Missteps like undersized wire or mis-set pressure switches shorten life. PSAM offers install kits and guidance; I’ll walk you through the pump curve, wire sizing, and pressure tank selection. For emergency replacements, we can ship same day and coordinate with your contractor to get you back online fast.
8) What’s the difference between 2-wire and 3-wire well pump configurations?
A 2-wire well pump houses starting components in the motor—simplifying installation with fewer points of failure above ground. A 3-wire well pump uses an external control box containing the start capacitor and relay, which can ease troubleshooting and part replacement without pulling the pump. Performance at the same horsepower is similar, but service philosophy differs: 2-wire equals simplicity; 3-wire equals diagnostic flexibility. In 200–300 foot wells with 230V power, both are viable. I recommend 2-wire for straightforward residential replacements and 3-wire for complex or remote systems where fast diagnostics save miles and hours.
9) How long should I expect a Myers Predator Plus pump to last with proper maintenance?
Installed and sized correctly, expect 8–15 years. I’ve seen 20–30 years in clean-water, well-sized systems with appropriate tank drawdown and surge protection. Maintenance includes checking pressure switch calibration annually, inspecting tank precharge seasonally, confirming well cap integrity, and ensuring no additional inline check valves are trapping pressure. Keep starts per day reasonable with adequate tank sizing. If your water brings sand occasionally, consider a sediment strategy and ensure drawdown calculations include seasonal water level changes. Do these, and a Predator Plus with a Pentek XE motor will outlast the budget crowd by a country mile.
10) How does Myers’ 3-year warranty compare to competitors and what does it cover?
Myers’ 36‑month warranty outpaces many brands stuck at 12–18 months. It covers manufacturing defects and performance failures under normal operation. When paired with PSAM’s documentation and support, claims move faster because we keep model and curve data on file. Compared to budget brands with narrow terms, the Myers warranty reduces risk over the window when early-life failures typically present. Factor in field-serviceable design and readily available parts, and your real-world downtime and expense shrink substantially. It’s not just a paper promise—it’s a practical shield for your water supply.
Conclusion: Put the Numbers to Work and Choose a Pump That Pays You Back
Reliable water depends on accurate GPM and TDH—and a pump built to handle both for years. Myers’ Predator Plus, with 300 series stainless steel, Teflon-impregnated staging, and the Pentek XE motor, turns careful sizing into quiet, efficient, long-term performance. PSAM’s calculator gets you to the right target, and our stocked inventory gets you back online fast.
The Velasco‑Lund family now enjoys steady 10 GPM service at 232 feet TDH, powered by a 1 HP, 230V Myers selection sitting right on its pump curve knee. No short-cycling. No guesswork. Just water—every time.
If you want help confirming your numbers or picking between 2-wire and 3-wire, call me. I’ll review your TDH, match your operating point to the curve, and recommend the Myers build that’s going to make your life easier for the next decade. When water is non-negotiable, that confidence is worth every single penny.