Myers Water Well Pumps for Irrigation: Design Tips

The sprinklers stopped, the shower fizzled to air, and the pressure gauge sat at zero. When water goes silent on a property that lives and breathes by a private well, the clock starts ticking—gardens wilt, livestock go thirsty, and daily routines grind to a halt. I’ve answered those emergency calls for decades, and I can tell you: smart design up front prevents most of the late-night crisis calls I get from frantic homeowners.

Meet the Bencomos. Diego Bencomo (38), an agricultural supply rep, and his wife Mara (36), a remote pediatric nurse, live on 10 acres outside La Junta, Colorado. Their 165-foot well feeds two orchard zones, a half-acre of pasture irrigation, and household fixtures for their kids Luis (9) and Ines (6). After a budget-brand pump cracked during a pressure cycle, the Bencomos were dry for two days. That scare kicked off a complete irrigation redesign—starting with a proper submersible selection, smarter zoning, and a pump curve review you’d expect from a seasoned contractor.

In this guide, I’ll walk you through the exact design steps I shared with Diego: how to pick the right Myers Predator Plus model, interpret pump curves, match flow to zones, plan for drawdown, and protect your system. We’ll cover motor efficiency, staging and head pressure, wire configurations, and how to make sure what you buy is truly field-serviceable. We’ll also touch warranties, real-world energy numbers, and why stainless steel matters in irrigation. Whether you’re a rural homeowner trying to stop the cycle of failures, a contractor hunting for dependable supply, or someone in full-on emergency mode, these are the 12 tips that save jobs—and gardens.

Awards and credentials worth noting: Myers’ Predator Plus Series is backed by Pentair engineering, routinely runs at over 80% hydraulic efficiency near BEP, and carries a 3-year warranty that beats typical industry coverage. At Plumbing Supply And More (PSAM), I stock the right accessories, pump curves, and support you need—because getting you back in water today and keeping you there for the next decade is my day job.

A well-designed irrigation system begins with accurate math. Total Dynamic Head (TDH), zone-by-zone gallons per minute, and the pump curve form the foundation of reliable performance and long service life. With a properly selected Myers unit, pressure stays stable, sprinklers overlap correctly, and the motor lives a long, cool life.

A quick refresher: TDH equals static water level lift plus friction loss plus service pressure (usually 40-60 PSI). Pick a model whose curve delivers your required flow at that TDH, ideally near its Best Efficiency Point. For the Bencomos’ 165-foot well, sprinkler zones were designed for 12–14 GPM at 55 PSI. Translating PSI to head (PSI x 2.31) and adding friction, the design target landed around 190–210 feet of head at 12–14 GPM. A Myers Predator Plus selection with a strong mid-curve at that point gives rock-solid performance without over-amping.

Diego’s previous pump failed because it was undersized for his irrigation pressure and overworked at the far right of its curve. After redoing the math, he stepped into a properly staged Myers model and immediately saw stable pressure and quiet cycles.

Key takeaway: Nail your TDH and zone GPM early. A correctly selected Myers submersible is the difference between smooth summers and mid-July headaches.

Irrigation systems see heavy start-stop cycles and long hours—weak materials don’t survive. Myers’ 300 series stainless steel construction resists corrosion, handles thermal expansion, and takes the abuse of daily irrigation. That’s not a brochure promise; it’s the difference I see when I pull failed plastic-bodied pumps from wells each season.

From the shell to the discharge bowl, stainless makes real-world sense. High mineral content? Slightly acidic pH? Sand? Stainless hardware pushes back against all of it. Pair that with Teflon-impregnated staging—self-lubricating and built to shrug off grit—and you’ve got long-term resilience. When Diego’s old unit (a thermoplastic body) cracked, it wasn’t a surprise; the orchard zones triggered frequent cycles, and pressure spikes did the rest.

For the Bencomos, stainless gave them a quiet-running system even when switching between pasture rotors and orchard drip. No stress fractures, no expansion fatigue—just dependable flow.

Key takeaway: On irrigated properties, stainless isn’t a luxury—it’s your first layer of reliability.

Material choice and impeller design directly impact irrigation reliability. Myers’ 300 series stainless steel assemblies paired with Teflon-impregnated staging are engineered for repeated pressure cycling and trace abrasives. Goulds Pumps often integrate cast iron components that can corrode more quickly in mineral-rich or acidic water, especially when a property runs two or three irrigation zones a day. Red Lion’s thermoplastic housings are lightweight and inexpensive, but I routinely see stress cracking after a couple of seasons of expansion and contraction.

On real properties, that translates to downtime and twice-a-summer hardware runs. Comparatively, a Myers Predator Plus with stainless steel shell and self-lubricating impellers holds tolerances better, resists stage warping, and keeps the motor from overworking due to scuffed hydraulics. The result is steadier pressure at the sprinkler head and far fewer nuisance shutdowns.

If your irrigation runs 6–10 hours a week, every week, the cost delta up front quickly evaporates. The stainless build, Pentair-backed engineering, and PSAM’s stocking of wear parts tilt the long-term math in your favor. In my book, the Myers choice is worth every single penny.

Irrigation loads are sustained. That’s why Myers’ pairing with the Pentek XE high-thrust motor is a big deal. You get efficient torque delivery and cool operation under pressure, so the motor doesn’t cook during long watering cycles. It’s a quiet ally that rarely calls attention to itself—until a cheaper motor fails early.

High-thrust design counters axial loads created by multi-stage hydraulics. Add thermal overload and lightning protection, and you’re shielding your investment from surprise shutdowns. The Bencomos run two 90-minute orchard cycles plus household demand several evenings a week; the motor’s stable amperage draw and temperature curve keep it safe during those long duty periods.

If you’ve ever felt a blistered wire or seen a control box scorched from repeat overheating, you know energy efficiency isn’t just an electric bill line item—it’s longevity.

Key takeaway: Pentek XE motors keep long irrigation cycles safe and affordable. Pair efficiency with good electrical practice and you’ll stack the deck for a 10-year run.

For irrigation, the naming plate horsepower isn’t the whole story. Staging (how many impellers) and where the duty point lands on the curve matters far more. The Myers Predator Plus Series offers 1/2 to 2 HP options with thoughtful staging for different head/flow needs. For the Bencomos, a 1.5 HP model delivering about 12–14 GPM at roughly 200 feet TDH put them right in the efficiency pocket.

Design zones by sprinklers and emitter demand, not guesswork. I like 10–12 GPM for a lawn rotor zone, 6–8 GPM for shrub sprays, and carefully metered drip for orchards. Then I set the pump to handle the highest-demand single zone plus house load, not “all zones at once.” Doing it that way keeps your pump from sprinting every evening.

When your design point is centered in the Predator Plus curve, the motor lives easy, pressure steadies out, and wear rates drop.

Key takeaway: Design with staging and curves. Myers gives you the options—use them to land right on target.

Hardware is one thing; serviceability and ecosystem constraints are another. Franklin Electric submersibles often pair with proprietary control boxes and, in some areas, rely on specialized dealer networks for parts access. Myers’ Predator Plus Series, by contrast, features a field-serviceable threaded assembly that most qualified contractors—and competent DIYers following local code—can work on without jumping through hoops. That means faster fixes when irrigation season is peaking.

From an electrical perspective, Franklin systems can skew toward three-wire configurations with external controls that add parts count and cost. Myers offers simplified two-wire options where appropriate, lowering upfront expense and reducing points of failure. On the efficiency front, Pentek XE motors used by Myers deliver excellent thrust management and stable amp draw during long irrigation cycles.

If your property can’t afford multi-day delays waiting for a specific box or a dealer slot, the Myers route reduces risk. Paired with PSAM’s same-day shipping on in-stock models and parts, your downtime stays measured in hours instead of days. For pressure-stable irrigation and predictable maintenance, the Myers package is worth every single penny.

Wire configuration affects complexity, diagnostics, and cost. A two-wire Myers submersible (with the start components in the motor) offers a clean install, fewer parts, and less to troubleshoot in the yard. For many irrigation wells under 300 feet with single-phase power, a 2-wire well pump is the straightest line to dependable service.

Three-wire has its place—especially for deeper wells or when you want external control over start components. But be honest about need versus tradition. For Diego, a 2-wire configuration kept the install tidy and lowered future points of failure. Combined with a quality pressure switch and a cycle-stop or zone design that prevents rapid cycling, his system behaves like a seasoned pro.

I’m not anti-3-wire. I’m pro-simplicity when it’s the right call.

Key takeaway: Let the well depth, TDH, and service philosophy decide. Myers gives you both paths and PSAM has the parts either way.

Irrigation introduces cycling. Cycling creates heat. Heat shortens motor life. Put the right guards in place and a good pump becomes a long-lived pump. I always start with start/stop strategy: a correctly sized pressure tank or a constant-pressure valve keeps cycles sensible. If you go tank-light with irrigation, be sure your zones run long enough to justify the start, and avoid on/off sequences every few minutes.

Next, filtration. A whole-house cartridge or spin-down filter downstream protects sprinklers, but the bigger move is preventing sand from entering the pump in the first place via correct screen position and well integrity. That’s where proper set depth and avoiding bottom silt make a difference.

The Bencomos added a cycle control valve and expanded their tank capacity. Result: smooth pressure during long orchard runs and a motor that doesn’t short-cycle itself into an early grave.

Key takeaway: Protective peripherals are cheap compared to pump pulls. Build them in from day one.

A great pump suffers under a cut-corner install. Start with quality drop pipe, secure wire to pipe at proper intervals, and use a pitless adapter that won’t corrode into a nightmare. Myers’ field-serviceable threaded assembly turns a future repair from a weekend-killer into a manageable afternoon.

I recommend staggered stainless clamps, proper torque arrestors above the motor (not cinched too tight), and a disciplined wire splice with heat-shrink. Label your wires at the well cap. Write down the static and pumping levels on day one. Future you—or your contractor—will love you for it.

For Diego, we mapped the well, labeled the cap, and documented the curve point and breaker size inside the basement panel door. That’s how you build a system you can hand off to anyone and keep running a decade later.

Key takeaway: Myers’ threaded assembly plus a clean, documented install equals painless service down the road.

Budget pumps promise flow on day one. The problem shows up in season two or three. Plastic housings relax under repeated heating and cooling, impellers scuff with a little grit, and motors run hot at the edge of their curve. I’ve replaced plenty of low-cost irrigation installs where the sprinklers sputtered at dusk and the motor screamed for mercy. Red Lion exemplifies the trade-off: lower upfront cost, thermoplastic bodies, and modest cycle resilience.

Myers’ Predator Plus Series answers those pain points: stainless construction, Teflon-impregnated staging, and Pentek XE motors that pull consistent amps at irrigation duty points. Irrigation asks for long cycles, not bursty domestic draws. That’s where efficiency and materials take the lead. Over a 10-year horizon, the extra $300–$600 upfront typically avoids at least one full pump swap, a service call, and the chaos of losing water mid-summer.

If your landscape, garden, or orchard depends on nightly runs, plastic won’t be kind. Paired with PSAM’s parts availability and support, the Myers route is the one I’d put on my own acreage—worth every single penny.

Summer irrigation exposes your aquifer’s habits. Water tables drop, and your pump must keep up without gasping. When designing with Myers, I build in a conservative drawdown assumption: 10–20 feet deeper during peak season unless your well log says otherwise. Then I select the Predator Plus model that still hits the design GPM at that deeper draw.

This matters. Pumps placed too close to the bottom suck silt; pumps sized on winter levels stall in July. During the Bencomos’ redesign, we confirmed their mid-summer pumping level at 112 feet and set the pump 15 feet above the screened interval base to avoid sediment. The chosen curve point still delivered 12–14 GPM at 55 PSI when the level sank.

Think ahead, and your sprinklers stay uniform even in August.

Key takeaway: Respect seasonal reality. Myers gives you models to handle it—use them wisely.

Irrigation control should serve the pump, not conflict with it. Use a quality pressure switch with a sensible cut-in/cut-out range, and pair it with timers that create long, stable runs. Avoid stacking multiple short cycles back-to-back. If you’re mixing household demand with irrigation, plan for overlaps so the pump doesn’t bounce between on/off states every few minutes.

For Diego and Mara, we programmed orchard blocks to run in the evening when household demand is low. The lawn zone follows with a short gap so pressure stabilizes. The result is calm starts, steady flow, and silent operation—no banging pipes or surprise shutdowns.

Smart control is often the cheapest upgrade you can make.

Key takeaway: Good controls make a good pump great. Myers thrives when the schedule is sane.

I’ve pulled perfect pumps that were blamed for controller problems, and I’ve seen failing pumps cleared by a pressure gauge stuck at 40 PSI for five years. Document everything on day one: static level, pumping level, breaker size, wire gauge, model number, and your design curve point. Tape a copy inside the panel door.

When performance drifts, compare today’s numbers to your baseline. If amps climbed and flow fell, suspect impeller wear or a partially closed valve. If pressure swings wildly, re-check the pressure tank pre-charge.

Diego laminated his sheet and stuck it above the softener. When something changes, he has facts—not guesses.

Key takeaway: Documentation turns “mystery problems” into quick fixes. Myers provides the data; you keep the scorecard.

Irrigation multiplies runtime hours, so warranty terms matter. Myers covers its Predator Plus submersibles with a 3-year warranty—industry-leading peace of mind—alongside UL listing and Pentair-backed testing. When you’re putting 300–600 hours a year on a motor, that extra coverage isn’t just a marketing line; it’s a lower total cost of ownership.

Warranties won’t cover improper installs, dry-running, or undersized wire problems, which is why your system design still matters. But when a legitimate defect pops up, having a real warranty and a responsive supplier (hi, PSAM here) is the difference between a painful week and a manageable hiccup.

On the Bencomos’ place, that coverage comfort let them invest in better irrigation heads and a proper tank—long-term thinking that pays out.

Key takeaway: Warranty depth and real support are part of the value. Myers and PSAM deliver both.

Every property is different, but patterns repeat. For medium-depth irrigation with 10–14 GPM needs and 150–220 feet TDH, my go-to sits in the 1 to 1.5 HP Myers Predator Plus range. It puts you mid-curve where motors are happy and sprinklers are even. For higher head demands or multiple rotor-heavy zones, I’ll move to a 1.5 HP with stronger staging.

On shallow TDH but higher flow requirements (big turf, short head), I sometimes step down horsepower and select a curve that favors flow without beating up the motor. Don’t overbuy HP; buy the right curve.

Diego’s final selection: a Myers Predator Plus submersible sized to deliver ~13 GPM at ~200 feet of head, two-wire configuration, and Pentek XE motor. It’s been a quiet workhorse since.

Key takeaway: Match the curve to the job. Myers gives you the lineup; PSAM helps you choose quickly and correctly.

Start with TDH (static lift + friction loss + service pressure) and your peak zone GPM. Then pick horsepower by the pump curve that delivers that GPM at your TDH Myers shallow well pump specifications near its BEP. For example, a property requiring 12 GPM at roughly 200 feet TDH often lands on a Myers Predator Plus around 1 to 1.5 HP depending on staging. If you need 55 PSI at the sprinklers, that’s ~127 feet of head—add static lift and friction to find total. Avoid the trap of “more HP is better.” A 1 HP unit properly staged might outperform a mismatched 1.5 HP on your actual design point. Rick’s recommendation: send PSAM your depth, drawdown estimate, and zone loads. We’ll overlay the Myers curve and size the right motor and staging, so you buy once.

Most homes run fine on 6–10 GPM for domestic use, but irrigation changes the math. A single rotor zone might require 10–12 GPM, while a drip zone could be 2–6 GPM. Multi-stage impellers create higher pressure by adding head with each stage, allowing a submersible to meet both depth and sprinkler PSI needs. Myers’ Predator Plus uses carefully engineered staging to deliver strong pressure at realistic irrigation flows. If your duty point is 12 GPM at 200 feet TDH, the right multi-stage model provides that pressure without throttling. I advise designing zones around a stable GPM (10–14 GPM is common) and selecting a Myers curve that lands mid-range for stable, quiet operation.

Efficiency hinges on hydraulic design, smooth internal flow paths, and impeller-to-diffuser fit. Myers Predator Plus staging is built with tight tolerances and smooth transitions that reduce turbulence losses. When you operate near the pump’s BEP, you see over 80% hydraulic efficiency, which shows up as lower amps and cooler motors. Pentek XE motors complement this by delivering thrust capacity at lower electrical losses during long irrigation cycles. Competitors with rougher internal surfaces or less precise staging often require more power for the same GPM and head. Real-world example: a properly selected Predator Plus at 12 GPM, 200 feet TDH will commonly run cooler and quieter than many budget alternatives, trimming energy costs by 10–20% annually.

300 series stainless steel resists corrosion from mineral-rich or slightly acidic water, which is common in rural wells. Cast iron can pit and scale, causing performance loss and eventual leakage—especially under irrigation’s frequent start/stop cycling. Stainless also tolerates thermal expansion better, reducing the chance of stress fractures near threaded joints. In a submersible environment where oxygen levels vary and minerals deposit over time, stainless preserves hydraulic integrity and longevity. Myers builds critical Predator Plus components with 300 series stainless steel so the pump resists the slow grind of corrosion. In my field experience, stainless-backed submersibles in irrigation duty add years to service life and avoid the “mystery pressure drops” caused by corroded internals.

Abrasives scour standard plastics and reduce impeller efficiency over time. Myers’ Teflon-impregnated staging forms a self-lubricating surface that reduces friction and resists wear when trace grit passes through. The material maintains tighter clearances longer, which protects head and flow performance. In irrigation wells with minor sand content, this can be the difference between a pump holding its curve for years versus losing pressure in a season or two. Pair the staging with sensible placement above the well bottom and, if needed, downstream particulate protection. The goal is to keep the pump internals smooth and unobstructed longer, which your sprinklers immediately appreciate as consistent reach and overlap.

High-thrust design counters the axial loads created by multi-stage hydraulics, preventing premature bearing wear. Pentek XE motors are built to deliver torque efficiently, with winding and rotor designs that lower electrical losses. Add thermal overload and surge protection to guard against voltage spikes—important in rural areas. The outcome is cooler operation during extended irrigation cycles, lower amp draw at the same duty point, and a noticeable reduction in nuisance trips. For a 1 or 1.5 HP setup at 230V, you’ll see steady-state amps that line up neatly with the nameplate—no scary spikes. In practice, this translates to longer motor life and a quieter, smoother system.

Capable DIYers can install a Myers submersible, especially in straightforward wells with existing pitless adapters and short run lengths. That said, many jurisdictions require licensed work for electrical connections, and a bad splice or undersized wire can ruin a motor. If your well is deep, the drop pipe is long, or the system needs reconfiguration (pressure tank, cycle control, advanced filtration), bring in a licensed contractor. Myers’ threaded assembly is field-serviceable, which simplifies future maintenance for either path. My recommendation: if you’re comfortable with plumbing and basic electrical, you can handle the mechanical drop; have a pro verify wire sizing, breaker, and pressure settings—and sign off on code compliance.

Two-wire pumps house the start components in the motor, simplifying the control box and wiring. They’re easy to install and reduce external points of failure—ideal for many irrigation properties under ~300 feet. Three-wire pumps use an external control box for start components, adding flexibility for troubleshooting and replacement. On deep wells or when diagnostic visibility matters, 3-wire can be the better call. Myers offers both. For many irrigation users, a modern 2-wire Predator Plus submersible at 230V hits the sweet spot for simplicity, cost, and performance. If you’re uncertain, share your depth, TDH, and intended runtime with PSAM and we’ll steer you right.

With sensible design and basic maintenance, expect 8–15 years of service life, and I’ve seen well-cared-for units run two decades. The keys are proper sizing (mid-curve operation), stable electrical supply (no chronic voltage drop), reasonable cycling (adequate tank or constant-pressure strategy), and clean intake (set above silt, solid well cap). For irrigation-heavy properties, log runtime hours and periodically confirm pressure and flow match your baseline. Myers’ 3-year warranty covers manufacturing defects, but the right install keeps you far from ever needing it.

Annually: check pressure tank pre-charge, inspect pressure switch contacts, verify amperage draw under load, and compare zone flow to your original numbers. Clean or replace any downstream filters and confirm no air intrusion at fittings. Every few seasons: verify well cap integrity, recheck drawdown level during peak irrigation, and document any changes. If flow drops or amps climb unexpectedly, schedule a professional assessment. With irrigation, add a mid-summer check-in when runtime is highest. Maintenance isn’t glamorous, but it’s cheap insurance for a system you depend on daily.

Myers goes beyond the common 12–18 month coverage to a full 3-year warranty on Predator Plus models, covering manufacturing defects and performance issues under normal use. Compared to many competitors—especially budget brands—this extended coverage reduces ownership risk for high-runtime irrigation users. It doesn’t cover improper installation, dry-running, or power supply issues, which is why design and documentation matter. Register your product and keep installation records; PSAM will help expedite parts or replacements if a legitimate claim arises. Practically, it means you won’t be left footing the bill for early-life surprises, which can be costly mid-season.

Budget brands can look attractive up front, but frequent replacements, higher electrical consumption, and downtime add up. A Myers Predator Plus submersible, selected to run near BEP with a Pentek XE motor, often saves 10–20% in energy and avoids at least one mid-life replacement common with budget plastics. Factor in a 3-year warranty and PSAM’s fast parts supply, and your downtime costs shrink. Over a decade, I routinely see $800–$1,500 savings in combined energy, labor, and avoided emergency service—plus the intangible value of reliable water when your landscape needs it most. The math is simple: buy well, buy once.

Irrigation exposes every weakness in a water system: undersized pumps, flimsy materials, hot-running motors, and chaotic controls. Myers tackles those failure points head-on with 300 series stainless steel construction, Teflon-impregnated staging, and efficient Pentek XE motors—all backed by Pentair engineering and a 3-year warranty. Start with clean TDH math, pick your curve carefully, and control cycling. Install with discipline and document everything. Do that, and your Predator Plus submersible will hum through summer after summer.

Diego and Mara Bencomo went from myers pump distributors a cracked housing and two days without water to a quiet, confident system that feeds their orchard and home without drama. You can, too. If you want a quick curve review or a second set of eyes on your zone plan, reach out to us at PSAM. We stock the Myers models, accessories, and real-world guidance that keep irrigated properties thriving—season after season.