A.Y. McDonald · Sump Pump
DuraMAC Thermoplastic Sump Pumps
Three lightweight submersible sump pumps, 1/4 and 1/3 HP, tethered or vertical float, 20 to 28 GPM at 10 ft of lift.
20-28 GPM at 10 ft Lift · Up to 25 ft Max Lift
1/4-1/3 HP
120V 1Ph
Tethered or Vertical Float
1-1/4 or 1-1/2 in Discharge
1/8 in Solids
Thermoplastic Body
10 ft Cord
9-10 lb Weight
What Ships and What It Needs to Run
Included: the submersible pump with its float switch (tethered on the 5025PTSP, vertical on the 5025PVSP and 5033PVSP) and a 10 ft power cord.
Sized at install: basin, check valve and discharge pipe, ordered separately.
Overview
With a tough thermoplastic construction, the DuraMAC thermoplastic sump pumps handle up to 30 GPM (1/4 HP) and 40 GPM (1/3 HP). Each lifts water up to 25 ft of vertical height and takes a 1-1/4 in or 1-1/2 in discharge.
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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Clog-resistant impeller — passes 1/8 in solids.
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10 ft power cord — 25 ft cords available.
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5033PVSP — also offered without a switch through the factory.
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 more flow at your lift, step up to the DuraMAC cast iron sump pumps (up to 70 GPM).
Models & Ratings (60 Hz)
| Model |
Part No. |
HP |
Switch |
Cord |
Amps |
Solids |
Max Flow |
At 10 ft |
Weight |
| 5025PTSP |
6190-146 |
1/4 |
Tethered Float |
10 ft |
3.8 |
1/8 in |
30 GPM |
20 GPM |
9 lb |
| 5025PVSP |
6190-154 |
1/4 |
Vertical Float |
10 ft |
3.8 |
1/8 in |
30 GPM |
20 GPM |
9 lb |
| 5033PVSP |
6190-147 |
1/3 |
Vertical Float |
10 ft |
4.1 |
1/8 in |
40 GPM |
28 GPM |
10 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 |
Thermoplastic |
| Discharge |
1-1/4 in or 1-1/2 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 |
| 5025PTSP / 5025PVSP |
30 |
22 |
20 |
16 |
9 |
2 |
| 5033PVSP |
40 |
34 |
28 |
22 |
12 |
2 |
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. 292, 293 and 296.
Reading it: at 10 ft of total head the 5033PVSP moves 28 GPM and the 1/4 HP models 20 GPM. Size the pump to beat your pit’s inflow with a margin.
Before You Buy — The Limits That Decide the Fit
| Water |
Clear water and groundwater with small solids (see Solids in the table). A.Y. McDonald lists these pumps as non-potable. |
| Lift |
Up to 25 ft of vertical height. Read the performance table at your total head, not at zero. |
| Basin |
Vertical-float models suit narrow basins; tethered floats need room to swing. Pedestal and pre-plumbed kits are on separate listings. |
| Check valve |
Fit a check valve on the discharge so the pipe does not drain back into the pit after each cycle. |
| Power |
120V single phase, 60 Hz. Plan a dedicated outlet within cord reach. |
| Duty |
Split capacitor motor, continuous duty, thermal protected. |
| Pairing |
Single pump. For a duplex basin, two pumps run from an alternating control panel. |
Accessories
| Accessory |
Code |
Description |
| DuraMAC replacement float switch |
5000-V--10 / 5000-T--10 |
Piggyback vertical or tethered float |
| Mounting block |
5000BLK |
Raises the pump off the basin floor |
