A.Y. McDonald · Effluent Pump
DuraMAC Cast Iron Effluent Pumps
Five cast iron effluent pumps for septic dosing and gray water, 1/3 and 1/2 HP, with tethered, vertical or no switch.
25 ft Max Lift · 60-70 GPM Max
1/3-1/2 HP
120V 1Ph
Tethered, Vertical or No Switch
5/8 in Solids
1-1/2 in Discharge
Stainless Vortex Impeller
10 ft or 25 ft Cord
23-28 lb Weight
What Ships and What It Needs to Run
Included: the cast iron effluent pump with its float switch (tethered or vertical, per the model) and the power cord, 10 ft or 25 ft per the model.
Float or control panel required on No Switch models, ordered separately. The CUEF models run from a piggyback float such as the DuraMAC replacement float switch, or from a dosing control panel.
Sized at install: pump tank or basin, check valve and discharge pipe.
Overview
With a rugged cast iron construction, the DuraMAC effluent pumps handle up to 60 GPM (1/3 HP) and 70 GPM (1/2 HP), lift water up to 25 ft of vertical height and pass 5/8 in solids through a non-clogging stainless steel vortex impeller.
Which switch fits your pit? A vertical float rides up and down on a rod beside the pump, so it works in narrow basins. A tethered float swings on its cord, so it needs more room but gives a longer run between starts. No-switch models run from a separate piggyback float or a control panel, the usual choice when a basin already has its own controls.
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Split capacitor motor — continuous duty and thermal protected.
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1-1/2 in discharge for high-capacity pumping.
Genuine A.Y. McDonald equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier. Watermain Supply is an Authorized Stocking A.Y. McDonald and Baker Water Systems Distributor.
3-Year A.Y. McDonald Warranty
Covered for 3 years from the date of installation under Baker Manufacturing’s published limited warranty (A.Y. McDonald Pumps & Accessories price list, effective 7/1/26). Per Baker’s terms, the warranty does not cover failure caused by sand or abrasive materials in the water.
Outgrow It and You Don’t Replace It
Single pump. For heads above 25 ft see the DuraMAC High Head Effluent Pumps (to 50 ft).
Models & Ratings (60 Hz)
| Model |
Part No. |
HP |
Switch |
Cord |
Amps |
Solids |
Max Flow |
At 10 ft |
Weight |
| 5033CUEF |
6191-114 |
1/3 |
No Switch |
10 ft |
5.9 |
5/8 in |
60 GPM |
50 GPM |
23 lb |
| 5050CTEF |
6191-113 |
1/2 |
Tethered Float |
10 ft |
7.6 |
5/8 in |
70 GPM |
58 GPM |
24 lb |
| 5050CTEF25 |
6191-117 |
1/2 |
Tethered Float |
25 ft |
7.6 |
5/8 in |
70 GPM |
58 GPM |
26 lb |
| 5050CVEF |
6191-118 |
1/2 |
Vertical Float |
10 ft |
7.6 |
5/8 in |
70 GPM |
58 GPM |
24 lb |
| 5050CUEF |
6191-115 |
1/2 |
No Switch |
10 ft |
7.6 |
5/8 in |
70 GPM |
58 GPM |
23 lb |
Source: A.Y. McDonald Pumps by Baker catalog, rev 3/26, and Pumps & Accessories price list, effective 7/1/26.
Shared Specifications
| Voltage |
120V, 1 phase, 60 Hz |
| Speed |
3450 RPM |
| Construction |
Cast iron |
| Discharge |
1-1/2 in |
| Solids |
5/8 in |
| Motor |
Split capacitor, continuous duty, thermal protected |
Performance — Will It Do What You Need?
| Total head → |
0 ft |
5 ft |
10 ft |
15 ft |
20 ft |
25 ft |
| 1/3 HP: 5033CUEF |
60 |
56 |
50 |
35 |
15 |
6 |
| 1/2 HP: 5050 models |
70 |
66 |
58 |
48 |
25 |
10 |
Gallons per minute at each total head, as printed by A.Y. McDonald. Total head is the vertical lift from the water level to the highest point of the discharge, plus pipe and fitting friction. A dash is a head the pump does not reach. Source: A.Y. McDonald Pumps by Baker catalog, rev 3/26, pp. 307 to 309.
Before You Buy — The Limits That Decide the Fit
| Water |
Septic effluent, gray water and clear water with up to 5/8 in solids. Not for raw sewage; use a sewage pump that passes 2 in solids. |
| Lift |
Up to 25 ft of vertical height. |
| Dosing |
Size the dose from the system design; the pump must deliver the design flow at your total head. |
| Power |
120V single phase. |
| Pairing |
Single pump; duplex dosing tanks use two pumps and an alternating panel. |
Accessories
| Accessory |
Code |
Description |
| DuraMAC replacement float switch |
5000-V--10 / 5000-T--10 |
Piggyback float for the CUEF models |
| Mounting block |
5000BLK |
Raises the pump off the tank floor |
