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Effluent Pumps
Availability
Type
Voltage
GPM
Price
$0
$2,629.98
4/10 - 1/2 HP Effluent Submersible Pumps
A.Y. McDonald
4/10 - 1/2 HP Effluent Submersible Pumps
- Price
- From $626.89
Thermoplastic High Head Effluent Pump 30 GPM w/o Check Valve
A.Y. McDonald
Thermoplastic High Head Effluent Pump 30 GPM w/o Check Valve
- Price
- From $1,275.31
Thermoplastic High Head Effluent Pump 30 GPM
A.Y. McDonald
Thermoplastic High Head Effluent Pump 30 GPM
- Price
- From $1,275.31
Thermoplastic High Head Effluent Pump 20 GPM w/o Check Valve
A.Y. McDonald
Thermoplastic High Head Effluent Pump 20 GPM w/o Check Valve
- Price
- From $1,237.17
Thermoplastic High Head Effluent Pump 20 GPM
A.Y. McDonald
Thermoplastic High Head Effluent Pump 20 GPM
- Price
- From $1,237.17
Thermoplastic High Head Effluent Pump 10 GPM w/o Check Valve
A.Y. McDonald
Thermoplastic High Head Effluent Pump 10 GPM w/o Check Valve
- Price
- From $1,222.40
Thermoplastic High Head Effluent Pump 10 GPM
A.Y. McDonald
Thermoplastic High Head Effluent Pump 10 GPM
- Price
- From $1,222.40
Thermoplastic High Head Effluent Pump End (no Motor)
A.Y. McDonald
Thermoplastic High Head Effluent Pump End (no Motor)
- Price
- From $232.55
5040CTEFH25 DuraMAC HH Effluent Pump 4/10 HP 120V CI/SS
A.Y. McDonald
5040CTEFH25 DuraMAC HH Effluent Pump 4/10 HP 120V CI/SS
- Price
- From $668.11
5050CVEF DuraMAC Effluent Pump 1/2 HP 120V Cast Iron
A.Y. McDonald
5050CVEF DuraMAC Effluent Pump 1/2 HP 120V Cast Iron
- Price
- $529.07
5050CUEF DuraMAC Effluent Pump 1/2 HP 120V Cast Iron
A.Y. McDonald
5050CUEF DuraMAC Effluent Pump 1/2 HP 120V Cast Iron
- Price
- From $465.09
5033CUEF DuraMAC Effluent Pump 1/3 HP 120V Cast Iron
A.Y. McDonald
5033CUEF DuraMAC Effluent Pump 1/3 HP 120V Cast Iron
- Price
- $415.88
Effluent Pumps
Description
Authorized Baker · Goulds · Davey Dealer
Effluent Pumps
Septic · Greywater
Lift Stations
Move septic effluent, greywater, and dewatering discharge to the leach field, drain field, or lift station. The complete Baker DuraMAC effluent pump lineup — thermoplastic and cast iron, ⅓ HP through 1/2 HP, with standard and high-head configurations for lift up to 70+ feet of TDH. Plus Xylem (Goulds) commercial effluent and Davey self-priming alternatives.
⅓ – ½ HP
Power Range
¾"
Solids Handling
25–70 ft
Lift Range
Same Day
Houston Stock
Brands We Carry
Effluent Pumps from Trusted Manufacturers
Baker DuraMAC for residential septic, greywater, and dewatering. Xylem Goulds for commercial septic systems and lift stations. Davey for tank-fed transfer applications. All authorized dealer pricing with same-day shipping on stocked items.
Find Your Match
Pick Your Application
Effluent pumps move pre-treated water — water that has already passed through a septic tank, filter, or settling basin and is free of large solids. They are NOT sewage pumps. Match your situation below — call 281.664.8000 for free sizing.
🌳 Septic to Leach Field
Pumping septic effluent uphill from tank to elevated drain field. Standard residential septic upgrade or new install where gravity won't work.
→ Baker 5033CUEF / 5050CTEF
⛰️ High-Head Septic Lift
Lift to elevated drain field, uphill leach trench, or sand filter beds. Need 50+ ft of TDH at design flow.
→ Baker 5040CTEFH25 / 5050CTEFH25 / 5050CUEFH25
🚿 Greywater Transfer
Greywater from showers, sinks, laundry routed to dedicated drain field or recycling system. ¾" solids capability handles soap and lint.
→ Baker thermoplastic effluent series
🏞️ Dewatering / Yard Drain
Yard drainage to elevated discharge, foundation drain pumping to daylight, exterior basin pumping to street drain.
→ Baker 5033CUEF / 5050CUEF utility
🏠 Mound System Pumping
Wisconsin-style and other mound septic systems require effluent pump in dose tank, lift to elevated mound. High-head, time-dosed.
→ Baker high-head EF + control panel
🏗️ Commercial Effluent
Commercial septic, restaurant grease tank effluent, multi-unit on-site wastewater. Continuous duty, redundancy required.
→ Goulds WS series quote · or duplex Baker
Critical Distinction
Effluent vs Sewage vs Sump — The Key Difference
Three submersible pump types handle three different liquids. Confusing effluent with sewage is the #1 source of premature pump failure on residential septic systems.
Sump
Clean Water · ⅛"–½" Solids
Clean Water
▸
Liquid: Groundwater, rainwater, basement seepage
▸
Solids: ⅛" minor sediment only
▸
Discharge: 1¼"–1½"
▸
Used for: Basement sump, foundation drain, dewatering
Effluent
Pre-Treated · ¾" Solids
Septic / Greywater
▸
Liquid: Post-septic-tank effluent, greywater, treated wastewater
▸
Solids: ¾" — handles fines and minor solids only
▸
Discharge: 1½"–2"
▸
Used for: Septic dose tanks, leach field lift, mound systems
Sewage
Raw · 2" Solids
Raw Wastewater
▸
Liquid: Raw blackwater with toilet waste
▸
Solids: 2" minimum (passes typical solid waste)
▸
Discharge: 2" minimum (code-mandated)
▸
Used for: Below-grade bathrooms, ejector pits
⚠ Never Use an Effluent Pump for Raw Sewage
Effluent pumps are designed for water that has already passed through a septic tank or filter — large solids have settled out, leaving only fines. Try to pump raw sewage (toilet waste) with an effluent pump and the pump will clog within hours, the impeller will jam, and the motor will burn out from over-current. The Baker EF series is a ¾" solids pump — that's plenty for septic effluent and far too small for raw sewage. If your application has a toilet upstream of the pump WITHOUT a septic tank in between, you need a sewage pump (5050C SJ series).
Thermoplastic Effluent · Pages 323-326
Baker Thermoplastic Effluent Pumps
Budget-friendly thermoplastic effluent pumps for residential septic effluent and greywater applications where corrosion resistance matters more than maximum durability. Up to ¾" solids handling, ⅓ HP and ½ HP options.
Thermoplastic effluent pumps are the right choice for: clean greywater (showers, laundry, sinks), septic dose tanks with well-functioning upstream filter, and any installation where the chemistry of the effluent could attack cast iron over time. Lower upfront cost, easier handling, corrosion-proof. Baker's thermoplastic effluent line uses the same modern E-Series platform as the 8300 jet pump series.
HP: ⅓ – ½ HPSolids: ¾"Body: ThermoplasticVoltage: 120V 1ØUse: Greywater · septic dose tank
When to Choose Thermoplastic Over Cast Iron
Thermoplastic wins when: (1) the application is greywater-only (no septic blackwater); (2) the well water has high mineral content that would corrode cast iron; (3) you need lower upfront cost for budget-driven specs; (4) the duty cycle is light (a few cycles per day, not continuous). Cast iron wins when: continuous-duty pumping, septic effluent (some chemistry), high cycle counts, or high-head applications. For most residential septic dose-tank applications: cast iron is the right call.
Cast Iron Effluent · 4/10–1/2 HP
Baker 5033 / 5040 / 5050 Cast Iron Effluent Series
Cast iron effluent pumps for septic systems, lift stations, and any application requiring continuous-duty performance. Two HP tiers and multiple switch configurations.
Cast Iron Effluent Lineup
| Model | HP | Switch | Cord | Best For |
|---|---|---|---|---|
| 5033CTEF25 | ⅓ HP | Tethered | 25' | Standard residential septic, longer install runs |
| 5033CUEF | ⅓ HP | None (utility) | 10' | External controls, time-dose panels |
| 5040CTEFH25 | 4/10 HP | Tethered · High Head | 25' | Mound systems, lift to elevated drain field |
| 5050CTEF | ½ HP | Tethered | 10' | Higher flow standard residential |
| 5050CTEF25 | ½ HP | Tethered | 25' | Higher flow with longer cord run |
| 5050CTEFH25 | ½ HP | Tethered · High Head | 25' | High-head premium for difficult installs |
| 5050CUEF | ½ HP | None (utility) | 10' | External controls, alarm panels |
| 5050CUEFH25 | ½ HP | None · High Head | 25' | External controls, high-head application |
| 5050CVEF | ½ HP | Vertical | 10' | Tighter basins, narrow dose tanks |
EF = Effluent designation. CT = Cast Tethered, CV = Cast Vertical, CU = Cast Utility (no switch). H = High head variant (re-engineered impeller for higher TDH at design flow). 25 = 25' cord standard.
Cast Iron Effluent Engineering
①
Cast Iron Body & Volute
Heavy-duty cast iron resists corrosion in septic effluent and dissipates motor heat for continuous-duty applications.
②
Non-Clogging Vortex Impeller
Cast SS vortex impeller passes ¾" solids without contacting blade tips — ideal for septic effluent with minor fines.
③
Thermally Protected Motor
Split capacitor motor with built-in thermal overload — protects against pump-down and over-current conditions.
④
High-Head (H) Variants
"H" suffix models (5040CTEFH25, 5050CTEFH25, 5050CUEFH25) use a re-engineered impeller for higher TDH at design flow — required for elevated drain fields and mound systems.
⑤
Three Switch Configurations
Tethered (CTEF) for wider basins, vertical (CVEF) for tight dose tanks, utility (CUEF) for external time-dose or alarm panel control.
5050CTEF Specifications
HP½ HP
Voltage120V 60Hz 1Ø
Discharge1½" or 2" NPT
Solids Handling¾" ✓
ConstructionCast Iron
ImpellerSS Vortex (non-clogging)
RPM3450
Standard Max Lift~50 ft
High Head (H) Lift~70 ft
DutyContinuous, thermal protected ✓
High Head · Mound Systems & Elevated Drain Fields
When to Specify High-Head (H) Effluent
Standard effluent pumps deliver design flow at moderate TDH. The "H" suffix variants are re-engineered for installations where the leach field, mound, or sand filter is significantly above the dose tank — situations that would starve a standard pump of flow at the working pressure.
5040CTEFH25 — 4/10 HP High Head
The lighter-duty high-head option. Ideal for mound systems with moderate lift and design flows of 15-25 GPM. 25' cord standard.
→ Standard mound systems
5050CTEFH25 — ½ HP High Head, Tethered
High-head ½ HP with tethered float. Higher design flow at higher TDH — for premium mound systems and elevated drain fields.
→ Premium mound / elevated
5050CUEFH25 — ½ HP High Head, Utility
High-head ½ HP with no switch — for external control panels with time-dosing capability. Required for engineered systems.
→ Engineered time-dose
When Standard Effluent Won't Cut It
Standard effluent pumps lose flow rapidly above ~25-30 ft of TDH. If your install has: (1) elevated drain field above the dose tank by 10+ feet AND a long discharge run to that field; (2) mound system with significant pressure-distribution losses; (3) sand filter beds requiring 4-5 PSI residual pressure for proper distribution; (4) long horizontal discharge with multiple bends — you need the H variant. Send us your engineered drawing or system specs and we'll size the right pump on the curve.
Available · Quote Only · Authorized Xylem Dealer
Goulds — Commercial & Engineered Effluent
Commercial and industrial effluent applications, engineered residential systems, and specifications calling for "Goulds or equal" route to Xylem. Same-business-day quote response.
Goulds WS Series Effluent
Commercial submersible effluent with cast iron and stainless options. Up to 5 HP. Solids handling matches application — ¾" effluent variants available.
→ Commercial septic
Goulds 3SE Submersible
Compact cast iron submersible with stainless mechanical seal — built for residential and light commercial effluent service.
→ Premium residential
Goulds GTGSP Effluent
Heavy-duty industrial effluent for high-cycle commercial applications. Cast iron, premium seals, oil-filled motor design.
→ Industrial · high-cycle
Goulds Engineered Septic Packages
For engineered on-site wastewater treatment systems (advanced treatment, ATU, drip irrigation), Goulds provides matched pump-and-control packages.
→ Engineered systems
When to Quote Goulds vs Stock Baker
Choose Baker DuraMAC for residential septic systems, mound system retrofits, and same-day install needs. Choose Goulds when: (1) spec calls for "Goulds or equal"; (2) commercial septic / on-site wastewater treatment; (3) engineered system with matched pump-and-control packages; (4) three-phase power required; (5) high-cycle continuous-duty applications. Email sales@watermainsupply.com with system specs and we quote same business day.
Technical Reference
Effluent Pump Sizing Guide
Three numbers needed: design flow rate (GPM at the discharge), Total Dynamic Head (TDH), and dosing strategy (continuous vs time-dosed).
Step 1 — Determine Design Flow (GPM)
| Application | Typical Design Flow | Notes |
|---|---|---|
| Residential septic dose tank | 15–25 GPM | Match to drain field design flow |
| Mound system / elevated drain | 25–40 GPM | Pressure-dosed, calculate residual |
| Greywater / dewatering | 10–20 GPM | Lower duty cycle, less critical |
| Multi-unit septic / commercial | 50–100+ GPM | Goulds WS series quote required |
| Sand filter / advanced treatment | 15–30 GPM | Engineer-specified, match exactly |
Step 2 — Calculate Total Dynamic Head (TDH)
TDH = Vertical Lift + Friction Losses + Residual Pressure
Vertical lift = dose tank water level → highest discharge point2" PVC friction ≈ 1 ft / 100 ftResidual pressure for distribution ≈ 5 ft (2 PSI)Mound systems often need 50+ ft TDH at design flowIf TDH > 30 ft → choose H variant
Step 3 — Dosing Strategy
Demand Dosed (Float-Switched)
Pump runs whenever water level rises to switch on-point. Standard residential setup. Use CTEF (tethered) or CVEF (vertical) models.
→ Standard residential
Time Dosed (Panel-Controlled)
External control panel runs pump on programmable timer regardless of water level (within high/low limits). Required for mound systems, sand filters, advanced treatment.
→ Engineered systems · mound
Pressure Dosed
Pump runs to deliver a calculated dose volume per cycle. Used in pressure distribution drain fields. Requires utility (no-switch) pump + control panel.
→ CUEF + control panel
Service & Replacement
Effluent Pump Parts & Accessories
When septic effluent backs up, the basement starts to smell or the drain field starts to fail. Same-day shipping on Baker DuraMAC effluent replacement parts.
Float Switches
Tethered, vertical, and wide-angle float switches rated for effluent service. Match by model — switch failure is the most common service issue.
→ Most common failure
Time-Dose Control Panels
Programmable time-dose controllers for mound systems and engineered septic. Pre-configured for Baker EF series compatibility.
→ Engineered systems
Check Valves (1½" / 2")
Effluent-rated check valves to prevent back-flow into dose tank. Critical for proper system function.
→ Anti-backflow
SS Vortex Impellers
Stainless steel vortex impeller replacements. Replace if pump runs but flow drops.
→ Performance restoration
Mechanical Seals
Carbon-ceramic mechanical seal kits for cast iron EF series. Replace at first sign of oil discoloration or motor leak.
→ Wear replacement
Dose Tank Alarms
High-water alarms for septic dose tanks. NEMA 3R outdoor-rated and NEMA 1 indoor variants.
→ Code-required
Technical FAQ
Common Questions
What's the difference between an effluent pump and a sewage pump?
Effluent pumps handle pre-treated water — water that has already passed through a septic tank or filter where solids have settled. ¾" solids handling, 1½"–2" discharge. Sewage pumps handle raw blackwater with toilet waste. 2" minimum solids handling, 2" minimum discharge required by code. Don't substitute one for the other — an effluent pump trying to handle raw sewage will clog within hours.
Do I need an effluent pump for my septic system?
Only if gravity won't deliver effluent from the septic tank to the drain field — typical when the drain field is uphill, far away, or buried at a depth that requires lifting effluent up to it. Many older septic systems use entirely gravity flow; modern systems with elevated mounds, advanced treatment units, or sand filters require effluent pumps to dose at the right flow and pressure. Ask your septic engineer or check the system as-built drawing.
When do I need the high-head (H) variant?
When TDH exceeds ~30 ft at your design flow. Common scenarios: (1) elevated drain field above dose tank by 10+ feet; (2) mound systems with pressure distribution; (3) sand filters requiring 4-5 PSI residual; (4) long discharge runs with multiple bends. Send us your system drawings and we'll calculate TDH on the pump curve to confirm.
My effluent pump is short-cycling. What's wrong?
Three causes: (1) Float differential too narrow — switch on/off range too small. Adjust tethered float for wider swing. (2) Pump oversized for inflow — empties tank too fast, fills again. Move to smaller HP. (3) Failed check valve — water bleeds back into dose tank between cycles. Replace check valve. For time-dosed systems, verify the controller's on-time and off-time programming match the system design.
What's a dose tank? Do I need one?
A dose tank is a separate pumping basin that holds septic effluent between doses. Required for: time-dosed systems, mound systems, and any application with pressure distribution. The dose tank receives effluent from the septic tank, the effluent pump (mounted in the dose tank) cycles to deliver measured doses to the drain field. Not required for simple gravity-fed septic systems where pumping is unnecessary.
Can I use my old sump pump as an effluent pump?
No — sump pumps are designed for clean groundwater with ⅛" solids handling. Septic effluent contains fines, fats, soap scum, and small organic particles that exceed sump pump tolerance. The sump pump's smaller passages will clog within weeks of effluent service. Use a proper effluent pump (Baker EF series) — designed for ¾" solids and rated for septic chemistry.
Tethered or vertical float on effluent pump?
Same logic as sump and sewage: tethered (CTEF) for wider basins (≥18" diameter), wider on/off range, fewer cycles. Vertical (CVEF) for tighter dose tanks where a tethered float would catch on basin wall. Most residential dose tanks are 18"×30" — tethered is the default. Utility (CUEF, no switch) for time-dosed systems where an external panel controls run cycles.
How often does an effluent pump need replacement?
Properly-sized cast iron effluent pump in residential service typically lasts 7–10 years. Premature failures (3-5 years) almost always trace to: (1) oversizing causing short-cycling; (2) raw sewage entering due to upstream filter failure; (3) failed float switch causing lockup; (4) grease or chemicals in greywater attacking impeller. Maintain upstream septic tank and filter properly to extend pump life.
Do I need an alarm on my effluent pump?
Yes for code compliance in most jurisdictions, and absolutely yes for system protection. Without an alarm, a failed pump leads to dose tank overflow → septic tank backup → drain field flooding → drain field failure (an expensive fix). High-water alarms cost $50-150 and protect a $5,000-15,000 drain field. Always include an alarm. NEMA 3R for outdoor dose tank lids, NEMA 1 for indoor mounting.
Can effluent pumps be used for greywater systems?
Yes — effluent pumps are well-matched for greywater (showers, sinks, laundry) since the chemistry is similar to septic effluent. Use thermoplastic models (more cost-effective for greywater service) or cast iron for higher-cycle applications. Check local codes — some jurisdictions have specific greywater system requirements for pump sizing, alarms, and labeling.
Are Baker effluent pumps septic tank compatible?
Yes — Baker DuraMAC effluent pumps are designed and rated for septic dose tank service. Cast iron construction with stainless steel impellers handles septic chemistry without corrosion concerns. The ¾" solids handling matches typical septic effluent post-tank. They are NOT designed for installation inside the primary septic tank — that's where solids settle. Use them in the dose tank or pump chamber downstream of the septic tank.
Are you an authorized dealer?
Yes — Watermain Supply (DBA of E4 Industrial LLC) is an authorized Baker Water Systems dealer, plus authorized for A.Y. McDonald, Davey, and Xylem (Goulds Water Technology & Lowara). All products ship factory-direct or from Houston stock with full manufacturer warranty.
Need an Effluent Pump Sized for Your Septic System?
Free system sizing including TDH calculation and high-head verification. Same-day shipping on Baker DuraMAC effluent pumps.
sales@watermainsupply.com
281.664.8000Free Sizing & Technical Support
sales@watermainsupply.comSame-Day Quote Response
Authorized DealerBaker · A.Y. McDonald · Davey · Xylem
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