What is the difference between 1 2 hp and 1 3 hp sump pump?
If you live in an average-sized home with an above-average water table, you will most likely need a 1/2 HP sump pump. These pumps will generally pump about 35%-40% more than their 1/3 HP counterparts, and can also handle higher vertical lifts for water being pumped through your discharge pipe.
The average home with an above average water table, will most likely require a 1/2 HP sump pump. This sized sump pumps about 35 to 40 percent more water than 1/3 HP sump pumps do. If water is higher than usual, a 1/3 HP can handle a higher vertical lift when discharging water.
A 1/3-horsepower motor collects and moves up to 42 gallons per minute (GPM) of water away from your home.
A ⅓ horsepower sump pump uses around 800-1050W while running and 13,000-4,100W to start up, whereas a 0.5-hp sump pump uses more than 1.5 times that amount just to start up.
First up on our list of the best sump pumps of 2023 is the Wayne CDU1000 Sump Pump. Home Depot customers rate it at 4.7 out of 5, and it earns a 4.6 at Amazon. That's not surprising. After 70 years of building high-quality pumps, Wayne has it figured out.
You don't want a pump that is either too small or too powerful. If the pump is too small, it won't be able to keep up with water flowing into the basin. If the pump is too powerful, it will “short cycle.” This means the pump will start and stop frequently, which can cause premature pump failure.
WAYNE CDU790 - 1/3 HP Submersible Cast Iron and Stainless Steel Sump Pump with Integrated Vertical Float Switch - Up to 4,600 Gallons Per Hour - Heavy Duty Basement Sump Pump , Black.
Multiply the number of inches that the water rose in a minute by 60, in order to estimate the volume of water that would come into your pit during an hour of steady rain. Multiply this number by a "safety factor" of 1.5 to figure out the pumping capacity you need.
The 1/2 HP pump will remove water from a sump pit at up to 60 gallons per minute.
“A standard 1/2-horsepower well pump provides adequate pressure in many residential settings,” O'Brian says, “but it's a mistake just to assume that that's all you need.” Instead, O'Brian recommends carefully surveying the PSI requirements of each and every water-using appliance and system in and around your home.
How deep can a 1/2 HP well pump go?
The 0.5 HP pump operates from depths up to 125 Ft. providing up to a 12 GPM performance.
The 1/2 HP pump will remove water from a sump pit at up to 60 gallons per minute.
