Zoeller M63 3/10 HP Sump Pump Review & Specs
Here we’ll be reviewing one of Zoeller’s most popular products: the model 63. There’s a high demand for this pump. It’s the perfect pump for residential use. Most homes need a pump that’s average in performance. The average basin doesn’t need more or less than the M63.
That’s why the M63 is so successful and popular. It targets the average homeowner. The pump itself is far from average though. Think of it as a durable, reliable, quality sump pump. I think the 5-year warranty is a testament to how good this pump is.
Your basin has to meet some requirements for the M63. It can only handle the average basin. You can’t use it in a basin that demands powerful performance. There are similar Zoeller models that are more powerful. The build and warranty may not be that good. Take a look at the M98 or M95.
Performance and Usage
The M63 carries a 3/10 HP thermally protected motor. Really effective at handling small or medium amounts of incoming water. It can’t handle continuous duty but that’s not what the targeted audience needs.
At the starting discharge line lift, the flow rate is 2580 gallons per hour. The drop in the flow rate goes: 2580 GPH at 5 feet lift, 2040 GPH at 10 feet lift, and 1140 GPH at 15 feet. It can pump as high as 19.25 feet. I don’t think you’ll need more than that.
Most pumps are good only in certain situations. That’s not the case with the M63 though. You can use it in basins with low water inflow, and basins with regular medium inflow. Also, it can handle the usual thunderstorm. It will hold during the rainy season too.
When it comes to harsh conditions, it can handle it all. This pump can be reliable even in harsh basin conditions. It won’t break, corrode, and clog. We’ll go over the pump construction now, you’ll see for yourself.
Pump Construction
I think that the pump construction is what will impress you the most. Durability and quality materials are Zoeller signatures. You’ll find the construction to be more than enough for residential use.
It features cast iron construction all around. The pump housing, base, and impeller are all made from cast iron. Pumps that can be compared to the M63 rarely feature cast iron construction all over. Most of the time, the impeller is thermoplastic, not with this pump though.
The quality construction doesn’t end there. It also has cast iron bearings, and carbon/ceramic shaft steals. The pump is finished with powder-coated epoxy which makes it corrosion resistant. It also helps with the heat build-up.
Pit Size and Turn On Point
Now, you’ll find the pump to be quite big in diameter. Which makes it suitable only for larger basins. Size your basin before buying the pump. If you haven’t build a basin yet, you’ll want to know the diameter requirements.
The basin needs to be at least 18 inches in diameter. Not that the pump is that big. I would say that the vertical float switch is big. Because of it, the basin needs to be large, to prevent hang-ups.
It’s automatically operated via a vertical float switch. The turn-on point is at 7-1/4 inches, and turn off point is at 3 inches.
Discharge, Clogging, and Solids
Most sump pump models for residential use support the 1/1-2 NPT discharge adapter. The M63 also uses 1-1/2 discharge.
Amazing solids handling ability. It can handle solids up to 1/2 inches in diameter. This just adds to the ability to be reliably in harsh basin conditions.
Solids can sometimes mess up the impeller. That’s an extremely unlikely scenario with this pump. The cast iron impeller goes great with the ability to handle solids. The M63 features a non-clogging vortex impeller.
Our Review of the Zoeller M63
Normally, we can be critical of most sump pumps. Despite our best effort, we can’t be negative when it comes to the M63. It’s not just us, the fact that there’s a high demand for this pump speaks for itself. More so, Zoeller has faith in this pump, hence the 5-year warranty.
The performance is average but that’s just what the pump is aiming at. For residential use, the performance is effective. As for the construction, there’s nothing bad that can be said. Epoxy coated cast iron makes it one of the most durable pumps out there.
Let me sum up what makes this pump so special in a few words. The high-quality corrosion-resistant construction. Handles large solids effectively. Won’t clog even in harsh basin conditions.
The M63 comes highly recommended. Not just from us but from many professionals. It will serve you for years, and you can rely on it during those important moments. I’m not saying all of these nice things to make you buy this pump. You can find many critical reviews on this website. I just genuinely think this is a top-notch sump pump.
Specifications
Here you can find the technical specifications of the Zoeller M63, such as its gallons per hour at different heights, its voltage and ampère, as well as its warranty and manual.
| Name | Zoeller M63 |
|---|---|
| H/P | 3/10 |
| Dimensions in inches, X x Y x Z | 10.03 x 7.71 x 10.06 |
| Maximum gallons per hour | 2580 |
| Certification | |
| Solids handling, diameter (inches) | 1/2 |
| GPH 0 | 2580 |
| GPH 5 | 2580 |
| GPH 10 | 2040 |
| GPH 15 | 1140 |
| GPH 20 | / |
| GPH 25 | / |
| Battery included | No |
| Battery required to run | No |
| Housing material | Cast iron |
| Base material | Cast iron |
| Impeller material | Cast iron |
| Switch Type | Vertical float |
| Warranty yes/no | Yes |
| Warranty years | 5 |
| Link to warranty | Link |
| Link to manual | Link |
| Voltage | 115 |
| Weight in pounds | 23 |
| Weight in Kg | |
| First year of production | 2001 |
| Is discontinued? | No |
| Running Amps | 9.7 |
| Starting Amps | |
| Cord Length (feet) | 10 |
| SJTW cord? | |
| Discharge size (inches) | 1-1/2 |
| Discharge type | Side |
| No-clog design | Yes |
| Switch On Point (inches) | 7-1/4 |
| Switch Off Point (inches) | 3 |
| Pumps Down To (Ft) | 19.25 |
| Liquid Temperature Minumum | |
| Liquid Temperature Maximum (F) | 130 |
| Motor: Continuous duty | No |
| Motor thermally protected? | Yes |
| Capacitor start motor | No |
| Requires check valve? | Yes |
| Check valve included? | No |
| Sump Pit diameter required (inches) | 18 |
| Circuit requirement (Ampere) | 15 |
