Introduction: When a Clogged Intake Screen Brings a Home to a Halt
Water turned to a gasp, the shower went icy, and laundry plans died mid-cycle—classic signs of a starved pump. In my years chasing down “no water” calls, a blocked intake screen has been the silent culprit more often than most folks realize. Starving a submersible even 10% can push it off its best efficiency point, drive amperage up, and snowball into worn impellers or a burnt motor. The fix? Selecting the right intake screen for your water conditions—and actually keeping it clean.
Meet the Sarabia family. Miguel Sarabia (38), a diesel mechanic, and his wife Priya (36), a school nurse, live on five acres outside Walla Walla, Washington, with their kids Elena (9) and Lucas (5). Their 165-foot private well and 3/4 HP Red Lion submersible limped along for just under three years before a gritty clog and overheating took it out during a weekend soccer tournament. With no municipal backup, the emergency was immediate: dishes, showers, livestock trough—everything depends on a well that runs flawlessly.
The Sarabias needed a real solution. We sized them into a Myers Pumps Predator Plus Series 1 HP, 10 GPM configuration with Teflon-impregnated staging, a Pentek XE motor, and a properly matched, corrosion-resistant intake screen—and we showed them how to keep that screen performing. In this list, I’ll cover how to choose the correct screen material, mesh size, and profile; how to spot restriction before it wrecks a motor; how to clean screens correctly; how to use sand-handling strategies; and which maintenance steps preserve head and flow. Along the way, I’ll share the Sarabias’ before-and-after results and why PSAM’s curated Myers Predator Plus systems are built to last.
Awards and proof? Myers’ industry-leading 3-year warranty, American-built quality, NSF/UL/CSA certifications, 80%+ hydraulic efficiency near BEP, and Pentair engineering behind the curtain. That’s why professionals spec Myers when failure isn’t an option.
I’m Rick Callahan at Plumbing Supply And More (PSAM). I’ve pulled, tested, and rebuilt more submersibles than I can count. If intake screens are out of sight and out of mind at your home, this is the article that will save your pump.
#1. Choose the Right Screen Material – 300 Series Stainless vs Thermoplastic for Submersible Wells
A well-chosen intake screen keeps abrasive fines out and helps your pump live a long, quiet life; the wrong one lets corrosion or warping choke your flow and cook your motor.
Here’s the engineering perspective. The Predator Plus intake screen integrated on Myers Pumps is built from 300 series stainless steel, the same corrosion-resistant alloy used on the shell, discharge bowl, and wear components. Stainless maintains roundness under load and temperature swings, so the inflow gap and hole geometry don’t deform. That stability matters: when porosity is consistent, NPSH (net positive suction head) requirements stay predictable, impellers see even loading, and amperage draw remains within the pump’s pump curve window. Thermoplastic screens, on the other hand, can creep or craze with repeated thermal cycles and mineral exposure—subtle deformations that reduce open area and increase inlet velocity, which invites clogging and cavitation noise over time.
Miguel Sarabia’s original Red Lion had a soft thermoplastic in-flow guard. It looked fine at a glance, but warping pinched open area, and silt packed tight. His post-failure amps told the story—overheating from chronic starvation. Upgrading to a stainless Predator Plus intake restored steady inflow and dropped current to spec.
Why 300 Series Stainless Holds Up in Real Water
Chlorides, iron, and fluctuating pH attack cheap alloys fast. 300 series stainless steel resists pitting, stress cracking, and rust flake that can plug a screen from the inside out. In high-iron areas like parts of eastern Washington, stainless prevents that orange scale “scab” that forms on plastic intake guards. Myers’ stainless not only lasts; it keeps its geometry, which preserves BEP performance.
Open Area Matters More Than You Think
Screen “percent open area” dictates inlet velocity. Too little area spikes velocity and pulls in fines; too much area without proper rigidity can deform. Myers’ intake hole geometry balances strength and open flow, preventing the “vacuum cleaner effect.” That steadiness reduces abrasion on the self-lubricating impellers upstream.
Key takeaway: For any modern submersible well pump, choose stainless for the intake every time—consistent porosity equals stable flow and longer pump life. Call PSAM if you’re not sure which Predator Plus configuration matches your water.
#2. Mesh and Hole Size Selection – Matching Intake to GPM Rating, Sand Fines, and Aquifer Behavior
Right-sizing the intake porosity stops sand before it reaches your impellers without throttling flow. Get this wrong and you’ll either chew up your stages or starve your motor.
In practical terms, I pair intake porosity with expected GPM rating and aquifer fines. For a 10 GPM Predator Plus Series pump, you need sufficient open area so inlet velocity stays below about 1.5–2.0 ft/s at design flow. Larger perforations (e.g., 3/16–1/4 inch) are fine for gravel-packed wells with minimal fines. For silt-prone formations, a tighter punched pattern or fine mesh guard over the stainless intake ring may be necessary; the goal is to stop the sub-150 micron load while keeping total open area ample. Myers’ engineered hole patterns do the heavy lifting, and for tricky wells, adding a removable stainless mesh sleeve keeps cleaning easy and controlled.
For the Sarabias’ 165-foot well, their driller logs showed intermittent sandy yield late in summer. We used the standard Predator Plus perforated stainless intake, then added a thin stainless wrap to curb fines during low water. Pressure and amps stayed stable across the season.
How to Balance Restriction vs Protection
Too-tight mesh increases inlet differential pressure. That shifts operating points on the pump curve and raises amperage. If you add a mesh sleeve, measure pressure at the tank tee and monitor motor amps after installation. A stable 10 GPM system should see consistent start-to-stop differential with no creeping current.
Seasonal Strategy for Fines
In late summer, aquifer drawdown can pull in smaller particles. A removable sleeve lets you increase protection when fines rise, meyer water pump then remove it once aquifer conditions calm. With field serviceable Myers assemblies, seasonal adjustments are straightforward for any qualified contractor.
Pro tip: If you hear sand “tinkling” at faucets, shut down and inspect the intake protection. Prevent grit from ever seeing your Teflon-impregnated staging. It’s cheaper than buying a new pump.
Detailed Comparison: Myers vs Goulds and Red Lion on Intake Integrity and Abrasion Resistance
Goulds uses a mix of stainless and cast components in many lines; Red Lion leans heavily on thermoplastic for housings and guards. Material choices at the intake translate directly to how a pump holds tolerance and resists abrasive fines. Myers’ all- 300 series stainless steel intake and shell stay round and dimensionally true under heat and pressure cycling. That geometry preserves open area and avoids the “pinch effect” that accelerates clogging. Pair that with self-lubricating impellers in Teflon-impregnated staging, and you get a flow path that tolerates incidental grit without eroding away efficiency.
In the field, I’ve seen Red Lion intake guards craze after a couple of hard summers, shrinking porosity and boosting amps 10–15%. Goulds units with cast iron sections can accumulate iron oxide bloom around the intake in acidic wells, which effectively narrows openings over time. Myers holds clean and rigid, so you spend your maintenance hours rinsing a sleeve rather than wrestling corroded parts. Over a 5–10 year window, that means fewer service pulls, steadier pressure, and lower power bills.
Bottom line: Intake strength and staging durability together keep a pump operating near BEP for years. Myers’ stainless-plus-composite package is worth every single penny.
#3. Field-Cleaning a Submersible Intake – Safe On-Deck Methods Without Damaging the Motor or Check Valve
Cleaning shouldn’t become a repair job. Done wrong, you’ll soak splices, seize the internal check valve, or force silt into the stages. Done right, you restore flow in under an hour.
Here’s my step-by-step. Kill power at the disconnect and lock it out. Pull the drop pipe to daylight at the wellhead using a proper lift or boom, not a tailgate and prayer. Secure the assembly across padded sawhorses; protect the motor leads and splice. Inspect the intake screen for biofilm, iron scale, and silt pack. Use a low-pressure rinse from inside out if possible (never a 3,000 PSI blaster), and a soft nylon brush to free stubborn deposits. For stainless mesh sleeves, unclip and backflush separately. Spin the shaft gently by hand to confirm free rotation; verify the internal check valve seats with a light controlled flow test. Dry the assembly, reassemble at the 1-1/4" NPT discharge, and lower back into the well, ensuring the torque arrestor (if present) is properly placed above the motor.
When we cleaned the Sarabias’ sleeve after their first sandy spell, pressure returned to 58/38 reliably and their Pentek XE motor ran cooler by 0.7 amps.
Protecting Electrical and Seals During Cleaning
Silicone-sealed, heat-shrink splices do well with light water exposure, but avoid soaking connections. Keep the motor vertical when possible so you don’t flood bearings. Never hammer or pry near the stainless screen—you can distort it and reduce open area.
When to Replace vs Clean
If stainless perforations are deformed or cracked, replace. Minor scale or biofilm? Clean and recheck. If sand returns immediately after cleaning, inspect the well screen itself or consider a sand separator upstream of the tank tee to protect the entire residential well water system.
Key takeaway: A careful rinse-and-brush routine preserves geometry. Muscle and pressure washers wreck more good pumps than sand does.
#4. Monitoring Flow Restriction – Using Pressure, Amperage, and TDH to Predict Clogged Intakes
A clogged intake hides in your electrical bill and your pressure gauge long before taps run dry. Watch the signs and you’ll fix it on your schedule—not the pump’s.
Technically, a restricted intake bumps required NPSH, shifting operation on the curve. Current creeps up 0.3–1.0 amps, run times lengthen, and discharge pressure drops at the same pressure switch setting. At the tank tee, note cut-in pressure and how quickly you hit cut-out. Compare that time and your breaker-side amperage to your baseline numbers. If your 10 GPM set used to rise 20 PSI in 60 seconds and now needs 90, the intake is suspect. Myers gives you stable baselines thanks to consistent stainless porosity; deviations are easier to catch early. Regular logs turn maintenance into a few minutes with a brush instead of a midnight motor swap.
Miguel Sarabia now keeps a spiral notebook: date, cut-in/out times, and amp draw on his 1 HP Myers. When summer fines hit, his numbers tipped him off a week before showers noticed.
Establish Your Baseline Right After Install
Record initial amps at steady-state flow, pressure rise times, and any vibration notes. With a Predator Plus Series 10 GPM at 165 feet TDH, expect smooth rise to cut-out and rock-steady current. These are your “golden” numbers to compare against.
Correlating TDH and BEP
As restriction increases, the pump moves off best efficiency point, converting more watts into heat than water. A small clog might cost you 5–8% efficiency. Left unchecked, that waste shows up on the bill and in motor temperature, even with thermal overload protection onboard.
Action step: If amps climb and rise time lags, schedule a sleeve cleaning. PSAM can ship stainless wraps and cleaning kits same-day.
Detailed Comparison: Myers vs Franklin Electric on Maintenance Access and Real-World Service
Franklin Electric builds premium motors and robust pumps, but contractors often face locked ecosystems with proprietary control components and narrower field-service options. Myers Pumps, by contrast, anchor on field serviceable threaded assemblies and flexible 2-wire well pump and 3-wire well pump options that most qualified installers can handle without dealer intervention. That matters when an intake inspection becomes a same-day job instead of a week-long parts chase. On efficiency, Myers’ Pentek XE motor drives strong thrust and stays cool under higher head, while maintaining the simplicity rural systems demand.
In everyday use, I see Franklin installs perform well, but intake inspections sometimes stall for lack of specific control gear or logistics. With Myers, drop-in compatibility and straightforward electrical layouts mean faster diagnostics, simpler seasonal cleaning, and less downtime. Over a decade, those saved service calls and reduced outage hours add up for families on private wells who can’t afford delays.
If you’re weighing total ownership, the practical access Myers bakes in—plus PSAM’s ready stock of parts—makes a strong case. Predictable maintenance and uptime are worth every single penny.
#5. Sand-Handling Strategies – Screens, Set Depth, and Add-On Separation That Protects Impellers
A screen alone can’t stop a sandy formation from sending fines; combine good intake selection with set-depth discipline and, where needed, inline separation.
Start with depth. Set the pump 10–20 feet above the well screen or known sediment layer. Too low, and you’ll vacuum the floor. Too high, and you risk drawdown exposure. Next, combine the standard Myers stainless intake with a low-profile stainless mesh sleeve during sand season. If you still see grit, add a spin-down or centrifugal sand separator ahead of the tank tee to catch what sneaks past. The goal is to shield the Teflon-impregnated staging and engineered composite impellers so they never see chronic abrasion. Myers staging tolerates incidental grit far better than metal-on-metal designs, but prevention keeps you at design flow year after year.
For the Sarabias, we raised their set depth 12 feet to clear the silty zone and installed a clear-bowl spin-down. Their water cleared within days, and intake cleanings went from monthly to once at summer’s end.
Choosing the Right Separator Size
Match separator flow capacity to your pump’s GPM rating. For a 10 GPM Predator Plus, choose a 10–20 GPM rated spin-down to avoid pressure loss. Purge weekly at first; you’ll learn your well’s sand habits quickly.
Protecting Stages for the Long Haul
Even with durable self-lubricating impellers, constant sand reshapes hydraulic edges. Keeping fines out preserves peak head and your submersible well pump’s quiet operation. That’s how you get 10–15 years—and sometimes more.
Next step: If you’ve had two sandy episodes this year, add separation. PSAM stocks stainless sleeves and sand separators that pair seamlessly with Myers discharge fittings.
Detailed Comparison: Myers vs Red Lion on Sand and Pressure Cycling Durability
Red Lion’s thermoplastic-heavy construction helps on price but struggles in hot-and-cold rural systems with frequent starts and stops. Thermoplastic housings and intake guards can craze, micro-crack, and deform when subjected to pressure cycling and mineral-laden water, especially where iron or hardness is elevated. By contrast, Myers’ 300 series stainless steel shell and intake maintain geometry under thermal expansion and pressure swings. That rigidity keeps open area stable and prevents the cascade of higher inlet velocity and accelerated clogging.
I’ve replaced more than a few Red Lion units where a season of sand and on-off irrigation cycling turned the intake guard into a restriction point. Power bills climbed, pressure dropped, and impellers wore unevenly. With Myers, the stainless intake stays round and cleanable, and the Teflon-impregnated staging shrugs off incidental grit. Long-term, this difference translates to fewer pulls and more years between replacements for rural homeowners.
Add the Myers 3-year warranty and PSAM’s same-day parts support and you’re looking at consistent, reliable service without the guessing game. For anyone depending on a private well, that level of durability is worth every single penny.
#6. Chemistry and Biofilm – Iron, Manganese, and Slime Control at the Intake
Your intake screen is the first thing biofilm and iron scale grab onto. Leave them alone, and you’ll get a slow-motion choke that shortens pump life.
In iron and manganese country, bacteria feed on dissolved metals and form gelatinous growths. Those stringy slimes collapse onto the intake screen during starts, plugging open area. Stainless resists under-film corrosion, and smooth finishes make brushing easier. If biofilm is chronic, a periodic well shock (per your local code and well driller guidance) reduces growth. On the mechanical side, schedule a sleeve inspection each season and after power outages—stagnant water encourages growth. Myers’ stainless geometry makes these cleanings quick and safe, protecting the internal check valve from grit-laden backflow that can lodge it open.
When Priya Sarabia noticed sulfur whiffs after a storm, we pulled their sleeve and found early biofilm. A careful brush and a code-compliant shock cleared it, and flow returned to normal.
Cleaning Technique for Biofilm and Iron
Use a soft brush and a mild acid descaler designed for stainless if iron scale is stubborn. Rinse thoroughly away from the motor. Never soak electrical splices. Gentle and patient beats aggressive and bent—they keystone the entire inflow path.
Preventing Recurrence
Fix what feeds the growth: stagnant periods and nutrient load. Exercise the system weekly, ensure the pressure tank maintains proper air charge, and confirm cut-in/cut-out are correct so short cycling doesn’t leave the intake sitting idle in mineral-rich water.
If biofilm keeps returning, consult PSAM for filtration and periodic maintenance kits that align with Myers’ materials.
#7. Installation Details That Protect Intakes – 1-1/4" NPT, Cable Management, and Drop Pipe Choices
An intake lives or dies by how the pump is installed. The right fittings and cable handling keep debris and vibration from chewing up your first line of defense.
Start with the 1-1/4" NPT discharge—use stainless or brass fittings to prevent galvanic corrosion that sheds flakes into the intake area on restart. Secure a cable guard above the intake so wires don’t whip or fray, and keep splices well above the intake to avoid turbulence right where water enters. On drop pipe, schedule 120 or flexible poly rated for depth is fine; what matters is straightness and minimal resonance at startup. Add a torque arrestor just above the motor to limit yaw that can stir sediment near the intake. And never set the intake right on the well screen or bottom. Leave clearance.
For Miguel and Priya, we re-piped in stainless at the discharge and added a cable guard. Their intake area stays clean, and startup is whisper-quiet—no rattle, no fines cloud.
2-Wire vs 3-Wire and Control Simplicity
Myers offers both 2-wire well pump and 3-wire well pump configurations. For many residential wells, a 2-wire reduces points of failure and simplifies maintenance around the intake area—fewer box components to troubleshoot when restriction shows up as a performance change. When deep heads demand 3-wire, Myers’ layout still keeps service straightforward.
PSAM “Rick’s Picks” for Intake-Protective Installs
- Stainless discharge nipple Cable guards and torque arrestor Safety rope with non-corroding hardware Proper well cap and seal to keep critters out Clear-bowl spin-down where sand is seasonal
Dial in the details. Your intake will thank you with years of steady flow.
FAQ: Myers Pump Intake Screens and Real-World Maintenance
1) How do I determine the correct horsepower for my well depth and household water demand?
Start with Total Dynamic Head (TDH): static water level + drawdown + friction loss + desired pressure (converted to feet; 1 PSI ≈ 2.31 ft). Next, estimate household demand—most homes run best at 8–12 GPM. For a 150–200 ft TDH system targeting 10 GPM, a 1 HP submersible well pump in the Predator Plus Series often lands on the right spot of the pump curve. For example, the Sarabias’ 165-foot well and whole-home usage called for a 1 HP at 10 GPM to maintain 40–60 PSI with room for irrigation. Always cross-check against pump curves and voltage (most residential units at 230V single-phase). If you’re on the fence between 3/4 and 1 HP, pick the model that keeps you near BEP at your most common flow point—running off-BEP wastes power and heats the motor. Rick’s recommendation: call PSAM with your static level, recovery rate, set depth, and desired PSI. We’ll spec the horsepower and staging that hit target flow without starving the intake.
2) What GPM flow rate does a typical household need and how do multi-stage impellers affect pressure?
Typical detached homes do well at 8–12 GPM. Add large irrigation zones or livestock, and you may need 12–18 GPM. Multi-stage impellers stack pressure (head) rather than flow; each stage adds a set head increment, so a 10 GPM, 11-stage pump delivers strong pressure at moderate flows. The benefit is clear: consistent pressure without oversizing horsepower. In practice, an 11–15 stage Myers 10 GPM pump will generate enough head to supply 50–60 PSI at the house even with 150–250 feet of set depth and friction losses. The intake’s job is to feed those stages without restriction. Keep the intake screen clean, and multi-stage design shines, maintaining shower comfort while the washer runs. Pro tip: don’t chase high GPM if your well yield is limited; use staging to Additional hints maintain pressure and protect the aquifer.
3) How does the Myers Predator Plus Series achieve 80% hydraulic efficiency compared to competitors?
Efficiency is a system story: precision-molded, engineered composite impellers with Teflon-impregnated staging, tight wear-ring tolerances, and a streamlined flow path from the intake screen through the diffuser stack. Add the Pentek XE motor with low slip and robust thrust bearings, and you reduce losses both hydraulically and electrically. Myers designs keep operation at or near best efficiency point under typical residential demands, translating to fewer watts per gallon pumped. In the field, I’ve logged 10–20% lower amperage at identical TDH and flow compared to budget brands. Keeping the intake unobstructed preserves that advantage—the moment porosity drops, amps tick up, and heat climbs. Paired with PSAM’s sizing support, this efficiency holds season after season, even as water levels fluctuate.
4) Why is 300 series stainless steel superior to cast iron for submersible well pumps?
Below grade, corrosion never rests. 300 series stainless steel resists pitting, crevice corrosion, and iron oxide buildup far better than cast iron, especially in acidic or chloride-influenced waters. Stainless keeps its shape and surface smoothness, preserving laminar flow at the intake screen and minimizing sites where biofilm and scale can anchor. Cast iron near the intake often blooms rust, which flakes and clogs openings or sheds into the pump’s eye. Over time, that means rising amps, dropping pressure, and eventually a hot, unhappy motor. Stainless also tolerates pressure cycles without micro-cracking. In the Sarabias’ iron-leaning water, stainless stayed cleanable—brush, rinse, done—no flaking, no crumbling edges. If you’re looking for a decade-plus of service, stainless is the baseline, and Myers makes it standard where others trim cost.
5) How do Teflon-impregnated self-lubricating impellers resist sand and grit damage?
Myers blends self-lubricating impellers with Teflon-impregnated staging to reduce friction and wear when incidental fines sneak past the intake. The Teflon acts as a dry-film lubricant, lowering coefficient of friction between impeller and diffuser under boundary-layer contact. Compared to metal-to-metal interfaces, this composite pairing doesn’t gall or seize when a grain of sand rides through; it sheds the intrusion and returns to normal operation. In practice, pumps with this design show slower efficiency decay in sandy wells. For the Sarabias, minor fines at summer drawdown didn’t translate into grinding noise or vibration—after cleaning their sleeve, the pump returned to its baseline pressure rise time. Key caveat: no impeller is a match for chronic sand. Use proper set depth, consider a separator, and keep the intake screen clear to maximize lifespan.
6) What makes the Pentek XE high-thrust motor more efficient than standard well pump motors?
The Pentek XE motor uses premium windings, optimized rotor design, and high-capacity thrust bearings to carry the axial load of multi-stage stacks without excessive slip or heat. Less slip equals better electrical efficiency; cooler windings extend insulation life. Integrated thermal overload protection and robust lightning suppression add resilience during brownouts and storms. Pair that with stable inflow from a clean intake screen, and the motor runs squarely within its thermal envelope. On a 1 HP at 230V, I routinely see cleaner current signatures and quicker recovery after heavy draws compared to generic motors. Better thrust capacity also keeps impeller alignment true, which reduces internal rubbing and preserves hydraulic efficiency. Translation: lower bills, quieter operation, and fewer motor-caused service pulls over a decade.
7) Can I install a Myers submersible pump myself or do I need a licensed contractor?
If you’re mechanically experienced, comfortable with electrical work, and have safe rigging for lifts, a DIY install is possible. That said, submersibles aren’t forgiving. You’ll need the right wire splice kit, torque management, proper pitless adapter practice, and careful handling around the intake screen and motor leads. Many jurisdictions require a licensed contractor for well work. Pros bring calibrated gauges, megger testers, and the experience to catch small issues—like a slightly distorted intake or a mis-set pressure switch—before they become failures. For the Sarabias, hiring a pro saved a second pull: we raised set depth 12 feet based on recovery observations. Rick’s recommendation: if your well is 100+ feet, or you’re switching from a budget brand to a Myers Predator Plus with upgraded intake protection, hire a licensed installer. PSAM can refer qualified pros and supply everything in one shipment.
8) What’s the difference between 2-wire and 3-wire well pump configurations?
A 2-wire well pump has start components (capacitor and relay) sealed in the motor; wiring is simpler, and there’s no external control box. Fewer parts above ground means fewer things to troubleshoot when you’re diagnosing intake restriction vs electrical faults. A 3-wire well pump uses an external control box containing start components, which can be beneficial for very deep wells or when you want above-ground access for electrical part replacement. Performance-wise, both can deliver identical head and flow if sized correctly. For intake maintenance, the real advantage of 2-wire in residential settings is simplicity—one less variable when you’re checking whether a clogged intake screen is the issue. Myers offers both configurations in the Predator Plus Series, so we match wiring style to depth, service preference, and regional norms.
Conclusion: The First Line of Defense That Pays You Back for Years
A healthy well system starts at the intake. Choose 300 series stainless steel, size porosity to your GPM rating, clean smart, and use depth and separation to keep fines out of your Teflon-impregnated staging. Myers’ Predator Plus Series couples a durable intake screen with efficient hydraulics and the Pentek XE motor, backed by a 3-year warranty and Pentair engineering. For Miguel and Priya Sarabia, that meant steady pressure, lower amps, and weekends free from emergency pulls. For you, it means predictable water in every season.
Ready to spec the right Myers intake and pump combo for your well? Call PSAM. We’ll get you the exact parts, fast, and keep your water flowing—worth every single penny.