Myers Pump for Wastewater: What to Consider
A basement drains slow for a week, then the floor drain burps up gray water after a heavy rain. Toilets hesitate. A sour smell rides through the utility room. By morning, the alarm panel on the sewage pit is screaming and nothing in the house will flush. That’s not a “maybe later” problem. That’s a wastewater emergency.
I’ve responded to hundreds of calls just like that. The bad news is a failed wastewater pump can shut your home down fast. The good news: choosing the right Myers pump—sized, specced, and installed correctly—turns that panic into long-term reliability. We’re talking years of quiet, dependable service with the horsepower and solids-handling you actually need. And when it’s my name on the line and PSAM’s reputation behind the sale, I don’t play guessing games.
Meet the Mojica family: Raul Mojica (41), a public school math teacher, and his wife, Kiana (39), a home-based baker, live on five wooded acres outside Chillicothe, Ohio with their kids Milo (11) and Zara (8). Their 1,200-gallon precast concrete septic tank feeds a 24" poly basin in the basement. After a wet spring, their older budget sewage pump seized. A contractor swapped in a mismatched unit that short-cycled until midnight—then died during Kiana’s prep bake. Their wastewater backups were triggered by the wrong pump, wrong float, wrong head calculations. Raul called PSAM at 6:20 a.m. My team walked him through choosing a properly rated Myers sewage pump with the right curves, right switch type, and right basin hydraulics. Pressure returned. Drains cleared. Crisis over.
In the next ten points, I’ll cover: horsepower and head calculations; solids size and impeller geometry; float control selection; basin design; power and wiring; corrosion resistance; alarms and redundancy; serviceability; warranty and total cost of ownership; plus real-world comparisons that matter when your basement and schedule are on the line. Whether you need a Myers sewage pump or a Myers grinder pump, this checklist helps you spec it right the first time.
Before we dive in, a quick reality check on awards and pedigree: Myers Pumps are backed by Pentair engineering, factory tested, and supported by PSAM’s technical team. You’ll see NSF/UL/CSA compliance across models, an industry-leading 3-year warranty on key lines, and designs that consistently deliver 8–15 years of service with proper care. That’s not brochure talk—it’s what I see in the field. Let’s get your wastewater handled.
#1. System Head Is Your Starting Line – Calculate TDH, Not Just HP and GPM
Sizing a Myers pump for wastewater begins with total dynamic head, not a guess at horsepower. Without the right TDH, you’ll either starve the fixtures or burn up the motor.
Technically, TDH (total dynamic head) combines static lift (vertical elevation from basin water level to discharge point), friction losses (through pipe, fittings, and check valve), and additional backpressure from venting and long runs. You don’t pick 1/2 HP vs 1 HP in a vacuum; you select a pump whose curve meets your design flow at your calculated TDH. Wastewater pumps generally operate in the 30–80 GPM band for residential sewage, but head can vary from 8 to 25 feet in homes—more in multi-level or long-run installs.
When the Mojicas called, Raul’s static lift was 12 feet, with 50 feet of 2" discharge and four elbows. We modeled friction using 2" SCH 40 at 60 GPM and confirmed a pump curve that intersected around 18–20 feet TDH at his target flow. Right-sized, the Myers sewage pump cleared the pit quickly and quietly.
How to calculate TDH without a mystery
Static lift is measured from expected pump-on water level to your discharge elevation. Add friction losses using a chart or calculator for your pipe diameter and length, and include the equivalent length of fittings. If you’re not sure, PSAM can run the numbers while you’re on the phone.
Curve matching beats trial-and-error
With pump curve in hand, find a model whose operating point lands near the middle of the curve—close to its BEP (best efficiency point). Running near BEP increases longevity, reduces heating, and saves energy.
Pro tip: Don’t forget check valve losses
A flapper-style check valve adds head, especially if undersized. Stick with full-port 2" checks on 2" discharge lines, angled at 45 degrees if possible to reduce slam and water hammer.
Key takeaway: Give us your measurements, and we’ll match a Myers unit to your real-world head—no more cooked motors or weak discharge.
#2. Solids Handling and Impeller Type – Choose Sewage vs Grinder with Confidence
Wastewater pumps handle solids differently. A Myers sewage pump passes solids; a Myers grinder pump macerates them. Pick the wrong style and you’ll either plug frequently or waste money on horsepower you don’t need.
Technically speaking, sewage pumps use non-clog impellers designed to pass 2" solids (sometimes 2.5"), ideal for standard residential septic systems where waste is already diluted. Grinder pumps use a cutting mechanism ahead of a high-head impeller to reduce solids to slurry, favored for long force mains or small-diameter pressure sewer lines where high head is needed.
For Raul and Kiana Mojica, 2" force main, short run, and typical household waste favored a 2" solids-passing sewage unit. A grinder was unnecessary and would have driven up cost and energy use.
When to specify a grinder
Long uphill runs, small 1-1/4" or 1-1/2" pressure mains, or neighborhoods with shared low-pressure sewer systems often require grinders. Expect higher TDH and lower GPM with grinders, but reliable transport over distance.
When a standard sewage pump shines
Short to moderate runs in 2" discharge, typical residential loads, and properly vented systems do best with a robust non-clog impeller. Less complexity, less maintenance, and excellent reliability.
Match impeller geometry to debris risk
If you get wipes, feminine products, or kitchen string into the system, non-clog impellers with wide passages reduce the chance of fouling. But remember: no pump loves “flushable” wipes. Education beats service calls.

Bottom line: Call PSAM, tell us your pipe size, run, and head. We’ll set you up with the right Myers sewage or grinder unit for your exact conditions.
#3. Materials That Last – 300 Series Stainless Steel, Engineered Composites, and Corrosion Resistance
Wastewater is hard on pumps. Acidic conditions and hydrogen sulfide attack metal. 300 series stainless steel resists corrosion far better than cast iron in aggressive environments, protecting fasteners, shafts, and hardware.
Technically, 300 series stainless offers superior chromium content and pitting resistance. Critical components—shaft, fasteners, and wear elements—are far less prone to seizing or rust-welding, which keeps serviceability intact. Engineered composite impellers and Teflon-impregnated staging (in clean water applications) have proven durability; in wastewater, the materials used on non-clog impellers resist abrasion and swelling.
In the Mojicas’ damp, slightly acidic pit, corrosion had seized the old pump’s fasteners. Raul appreciated that Myers’ hardware remained serviceable after years in the soup. No grinder wheel, no nonsense—just materials that shrug off hostile pits.
Combatting H2S and acidity
If you notice rotten-egg odors, assume corrosive conditions. Seal penetrations, maintain venting, and choose pumps with stainless hardware. It’s cheap insurance against frozen bolts and stuck volutes.

Composite vs metal impellers
Modern composites resist abrasion and don’t corrode. For non-clog designs, the material selection is about impact resistance and dimensional stability. Myers’ choices keep the clearances right over time.
Don’t forget the basin hardware
Stainless mounting bracket, rails, and lifting chains round out a system that remains serviceable. Skimping on hardware leads to ugly surprises during the next pull.
Takeaway: Your wastewater pump lives in a rough neighborhood. Myers’ material choices keep it working—and serviceable—years longer.
#4. Switches and Controls – Float Style, Panels, and Alarm Integration that Actually Work
The switch is your brain. A wrong float leads to rapid cycling or non-starts. A proper control strategy, including an alarm, prevents surprises and extends pump life.
Technically, you can run a plug-in tethered float, a vertical float, or a mechanical piggyback switch. For grinder systems or where code requires, use an external control panel with dedicated alarm and thermal overload protection. Short basins benefit from vertical floats; deeper basins can use tethered for wider differential. Set “pump on” a few inches below inlet and “pump off” above the volute to maintain submergence and motor cooling.
For the Mojicas, we replaced a flimsy vertical switch with a robust piggyback float, set differential to reduce starts per hour, and tied in a high-water alarm. No more midnight beeping for nuisance reasons—only when it matters.
Piggyback simplicity
Piggyback floats allow easy replacement and straightforward troubleshooting. Unplug the float, test the motor directly, and you know if the issue is control or pump.
Panels for grinders and complex pits
A control panel with separate alarm float, run indicator, and thermal protected circuit makes diagnostics fast. For dual pumps, an alternating control panel is a game-changer.
Set your differential right
Target fewer than 10 starts per hour for sewage pumps. More starts equals more heat and reduced life. We’ll help you set on/off heights based on basin volume.
Bottom line: Switches fail more often than motors. Choose robust controls and alarms with your Myers pump and stop rolling the dice.
#5. Basin and Hydraulics – Geometry, Inlet Position, and Anti-Vortex Details
Efficient wastewater systems start with the pit. Basin size, inlet location, and anti-vortex strategies make or break reliability.
Technically, basin diameter and depth drive cycle volume. Larger volume equals fewer starts. An inlet placed too low splashes incoming effluent onto the pump motor housing and floats, causing premature failure. Adding an anti-vortex plate at the suction reduces air entrainment. Smooth the flow path to your 2" discharge and check valve—avoid immediate tight elbows at the pump discharge.
When Raul and Kiana upgraded to a 24" diameter, 36" deep basin with the inlet set near the upper third, short cycling disappeared. The Myers sewage pump ran longer, cooler cycles and cleared solids reliably.
Right-size the basin
A 24" diameter is a common residential sweet spot. It gives room for floats, cleaner hydraulics, and less turbulence. Depth depends on slab and inlet height. Call us with clear measurements.
Control those inlets
If the inlet must be low, extend a short internal elbow or sanitary tee to direct inflow downward and away from the switch. That simple detail prevents float tangles and nuisance trips.
Venting and odor control
Proper venting is non-negotiable. A dedicated vent line prevents pressure swings and promotes smooth pump operation. Don’t share vents improperly with fixtures.
Key takeaway: A well-designed pit turns a pump from “working hard” into “hardly working.”
#6. Power, Wiring, and Protection – 115V vs 230V, Amperage, and Safe Splices
Electrical choices impact starting torque, efficiency, and longevity. Match voltage to motor rating and supply capacity to avoid brownouts and nuisance trips.
Technically, many residential sewage units run on 115V or 230V single-phase power. Higher voltage at the same horsepower yields lower amperage draw, which can reduce voltage drop over long runs. Always use a dedicated circuit with proper breaker size per the nameplate amperage draw. In the pit, use heat-shrink wire splice kits above the high-water line and a proper cord seal at the well cap or basin lid.
The Mojicas had a 115V circuit with marginal wire gauge and a long run. We confirmed acceptable voltage at start-up. If it had sagged, we would have moved them to 230V for headroom. Starting torque matters in sticky pits.
Circuit sizing and GFCI/ARC requirements
Follow local code. Some jurisdictions require GFCI protection; others exempt sewage pumps to avoid nuisance trips. Coordinate with your inspector—PSAM can advise from experience.
Cord routing and strain relief
Protect cords from float entanglement and abrasion. Use cable guards and route neatly. A clean setup is a reliable setup.
Lightning and surge
Wastewater equipment benefits from surge protection. If a storm takes out your pump, you’ll remember this advice. Myers motors include thermal overload protection; pair that with a whole-home surge device whenever possible.
Takeaway: Power stability equals pump longevity. Spec it right; wire it clean.
#7. Serviceability and Parts – Threaded Designs, Field Access, and Smart Accessory Choices
When your pump needs service, access matters. A field-friendly design saves real money and time.
Technically, many Myers wastewater units are built for straightforward removal: a robust handle, standard 2" discharge size with NPT threads, and clear access to the volute and impeller. Pair the pump with a quick-disconnect union or rail system so you’re not cutting pipe. Standard float switches and piggyback controls mean repairs don’t require proprietary tools.
During the Mojica replacement, we installed an isolation ball valve and union above the check valve. When their pump eventually needs service, it’ll be a 20-minute swap—not a Saturday lost to cutting and re-gluing.
Use unions and isolation valves
Place a full-port ball valve and union above the check. It’s the difference between a clean service call and a plumbing mess.
Safety rope and lift points
Attach a non-corroding safety rope to the pump handle. Never lift by the cord. A simple rope saves cords, backs, and tempers.
Keep a parts kit
One spare float, one union gasket, and a check valve flapper kit cost peanuts and prevent days of downtime waiting on a box.
Conclusion: Myers builds for service. PSAM outfits you with the right accessories so service is fast and painless.
#8. Alarm, Redundancy, and Risk Management – Two Pumps Beat One in Critical Homes
You don’t need two pumps until you really, really do. High-occupancy homes, basement bathrooms, and homes with frequent guests benefit from redundancy.
Technically, a duplex basin with alternating controls evens wear and provides backup if one unit fails. If you stick with single-pump, at least install a high-water alarm float to warn you before sewage reaches the floor. Some control panels can text or email alerts via Wi-Fi modules. For rural properties, an audible alarm buys time to avoid a spill.
The Mojicas stuck with a single pump but added a bright LED alarm and siren. During a big family weekend, the alarm gave peace of mind. When you’ve cleaned a flooded basement once, you value the warning.
Alternating control panels
A duplex panel switches lead/lag operation on each cycle. If one pump trips, the second takes over. It’s standard on commercial jobs, smart on busy homes.
Battery backup for alarms
Even a small UPS keeps your alarm alive during outages. No surprises when the power returns and the basin is full.
Test your alarm monthly
Lift the float, confirm the sound and light, and reset. Two minutes that can save thousands.
Takeaway: An alarm is mandatory; a backup pump is golden.
#9. Warranty, Efficiency, and Real-World Cost – Why Myers’ 3-Year Coverage Matters
Nothing says confidence like an industry-leading warranty. Myers’ 3-year warranty on select wastewater models far exceeds the 12–18 month norm, and that coverage affects your true cost.
Technically, running near BEP lowers amperage and heat, extending service life—which is where Myers’ design and Pentair’s R&D help. While wastewater pump efficiency isn’t quoted like potable submersible well pump efficiencies, hydraulic design and motor quality still drive energy use and thermal stress. Over ten years, fewer replacements and lower run-time per cycle reduce utility costs and headaches.
For Raul and Kiana, three years of coverage plus PSAM support meant one thing: the next call wouldn’t be to their bank account. Reliability is the cheapest path forward.
What the warranty really covers
Manufacturing defects and performance issues under normal use. Abuse, improper wiring, and clogged inlets from debris aren’t covered by any brand, so install clean and educate the household.
Energy adds up
A pump that clears the basin in 20 seconds instead of 45 runs cooler and costs less over time. Smart curve matching is an energy decision.
Documentation wins
Save your invoice, panel settings, and a photo of the installation. If you ever need a claim, we’ll have your back fast.
Bottom line: Coverage is part of cost. Myers and PSAM make it count.
#10. Brand Reality Check – Myers vs Key Competitors Under Wastewater Conditions
You’ll see a lot of badges in this aisle. What matters is how the pump holds up in real pits with real families. Here’s my field-tested take with two meaningful comparisons.
Detailed Comparison: Myers vs Goulds Pumps in Corrosive Pits (150–200 words)
In wastewater environments with high H2S or acidic condensate, materials tell the story. Myers leans on 300 series stainless steel hardware and components that resist pitting and frozen fasteners. Many Goulds residential sewage units incorporate cast iron elements that, while robust, can show accelerated corrosion around bolts and volutes in aggressive pits. On motor protection and hydraulics, Myers’ engineering keeps operation near BEP for lower heat and fewer nuisance trips. Control compatibility favors simple piggyback floats and standard panels, minimizing proprietary parts.
In the field, serviceability becomes the decider. Myers’ straightforward threaded assembly and common-part floats mean I can get a homeowner back online fast with parts PSAM stocks. Goulds is a respected name, but in corrosive basins, I’ve seen more fused bolts and longer service calls. Over ten years, that’s time and money. For rural homeowners who can’t afford downtime, the Myers approach—material choice, easy parts, and strong warranty—proves worth every single penny.
Detailed Comparison: Myers vs Red Lion in Demanding Residential Sewage (150–200 words)
Budget sewage pumps often advertise big GPM numbers but myers well pump cut corners on housing and switch durability. I’ve pulled more thermoplastic Red Lion housings that warped from thermal cycles than I care to count, especially after high-duty weeks with holiday guests. Myers’ stainless hardware and heavier housings handle heat and pressure fluctuations without deforming. On controls, Red Lion’s integrated switches can be a weak link; when the switch fails, the whole pump is a boat anchor. With Myers, piggyback float replacement is a five-minute fix.
Real households don’t treat wastewater like a lab. Kids toss wipes, guests linger, and storms raise infiltration. Under those realities, a Myers sewage pump paired with a robust check valve and alarm just keeps working. Fewer replacements, less downtime, and better materials reduce lifetime cost. For a system you depend on every day, the incremental price for Myers quality is worth every single penny.
Bonus: Where a Myers Grinder Pump Dominates
Long, uphill 1-1/4" pressure lines? Small-diameter force mains with 25–40 feet TDH? That’s grinder territory. A Myers grinder pump converts solids to slurry and pushes reliably where a non-clog sewage unit would stall. If Raul ever subdivides and adds a carriage house 300 feet up the drive with a small force main, I’ll spec a Myers grinder—no hesitation.
FAQ: Wastewater Pump Selection, Installation, and Ownership
How do I determine the correct horsepower for my wastewater system?
Start with TDH—static lift plus friction losses. Then pick a pump whose curve intersects your design flow at that TDH. In residential sewage, 1/2 HP to 1 HP covers most pits from 8–25 feet TDH with 2" discharge. For example, at 18 feet TDH and 60 GPM, a 1/2 HP may work; at 25 feet TDH and long horizontal runs, step to 3/4 or 1 HP. Use 2" discharge to keep velocities right for solids transport. My recommendation: call PSAM with distances, vertical rise, pipe diameter, and fittings. We’ll choose a Myers sewage pump or Myers grinder pump matched to your curve so you’re not guessing by horsepower alone.
What GPM flow rate should I target and how does impeller type affect it?
Typical residential sewage targets 40–80 GPM for rapid drawdown and solids movement. Non-clog impellers in sewage pumps pass 2" solids and deliver higher GPM at lower head. Grinder pumps deliver lower GPM but much higher head, ideal for long, small-diameter pressure mains. If your run is short with 2" pipe, prioritize GPM to clear the basin fast. For long uphill pushes, a grinder’s head capacity wins. Always confirm on the pump curve at your calculated TDH.
How do Myers pumps achieve efficiency and reliability under dirty conditions?
While the 80%+ hydraulic efficiency stat shines on clean-water submersible well pumps, wastewater reliability comes from good hydraulics, motor protection, and materials. Myers’ engineering keeps operation near BEP, which lowers heat and extends life. Thermal overload protection and robust windings protect against stalls. Non-clog impellers and corrosion-resistant hardware keep clearances right. The result is fewer cycles, lower amperage draw, and longer motor life.
Why is stainless steel hardware better for wastewater than cast iron alone?
Wastewater can produce hydrogen sulfide and acidic condensate that corrode iron quickly—especially at joints and fasteners. 300 series stainless steel resists that attack, preventing frozen bolts and seized housings. That matters at service time: you want a pump that comes apart predictably. Myers’ material choices protect both function and serviceability, which I value more than a marginally cheaper casting.
Do I need a grinder pump or will a standard sewage pump do?
If you’ve got a short-to-moderate run in 2" discharge pipe and a conventional septic, myers pump distributors a 2" solids-passing Myers sewage pump is usually correct. If your system uses 1-1/4" or 1-1/2" pressure mains over long distances or steep grades, choose a Myers grinder pump for the head. Call PSAM with your layout—we’ll run the numbers and make the call with your code and municipality in mind.
Can I install a Myers sewage pump myself?
A capable DIYer can replace a like-for-like pump using proper safety practices: lockout power, ventilate the pit, use a safety rope, and avoid lifting by the cord. Use a heat-shrink wire splice kit if needed, set floats correctly, and test the check valve. For new installations, electrical and plumbing codes often require a licensed pro—especially for control panels and venting. When in doubt, hire a contractor and let PSAM supply the psam myers pump, floats, and panel kit.
What’s the difference between piggyback floats and control panels?
A piggyback float simply turns the pump on and off—plug-and-play simplicity for single-pump pits. A control panel adds independent alarm, run lights, and sometimes alternating logic for duplex systems. Panels make troubleshooting faster and add protection features. For grinders, I recommend panels; for single sewage pumps, piggyback floats work well with a separate alarm float.
How long should a Myers wastewater pump last?
In a properly sized, well-vented basin with correct float settings and discharge, expect 8–15 years from a quality Myers sewage pump. Keep starts under ~10 per hour, ensure free-flowing 2" discharge, and avoid wipes. I’ve seen 20-year lifespans in clean systems with annual checkups. Add the 3-year warranty and your risk window is short.
What maintenance extends pump life?
- Test the alarm monthly.
- Inspect and exercise the check valve every 6 months.
- Clean debris from the intake screen and floats annually.
- Confirm on/off levels and adjust to maintain a healthy differential.
- Listen for change: a longer runtime could indicate partial blockage. PSAM sells accessory kits—floats, checks, unions—that make maintenance quick.
How does Myers’ 3-year warranty compare and what’s covered?
Most budget brands cover 12 months; some mid-range stretch to 18. Myers’ 3-year warranty covers manufacturing defects and performance issues under normal use, administered through Pentair. Keep your receipt and installation photos. With PSAM as your supplier, claims move fast. That extra coverage directly lowers your 10-year ownership cost.
What’s the 10-year cost of ownership: Myers vs a budget pump?
A budget pump at $250 replaced every 2–4 years, plus two service calls and a flooded-basement cleanup, easily exceeds $1,500–$2,500 over a decade. A Myers unit at $500–$900 that runs 8–15 years with a 3-year warranty and one float replacement typically costs far less overall. Add reduced energy use from proper curve matching and it’s not even close. That’s why I call Myers the least expensive “expensive” option.
Conclusion: The PSAM + Myers Advantage for Wastewater
Wastewater systems are unforgiving. Get the TDH wrong, pick the wrong impeller, skip the alarm, or wire it sloppy—and you’ll be mopping a mess at midnight. Myers solves these headaches with solid engineering, corrosion-resistant materials, smart controls, and a 3-year warranty that reflects real confidence. Pair that with PSAM’s technical support, fast shipping, and the parts that make service simple—unions, checks, floats—and your system just works.
For Raul and Kiana Mojica, that meant the right Myers sewage pump, sized to 18–20 feet TDH, with a dependable piggyback float, proper basin volume, and a loud alarm. Their drains run; their kitchen thrives; their weekends are quiet.
Want the same outcome? Call PSAM. Tell me your lift, your run, your pipe size, your basin depth. We’ll spec the right Myers—sewage or grinder—and ship it today. Reliable wastewater handling isn’t glamorous. It’s just essential. And with Myers from PSAM, it’s handled.
Public Last updated: 2026-01-29 06:48:16 AM
