Jet pumps are a popular, reliable way to draw water from a well, but choosing between a shallow well and a deep well model trips up a lot of buyers. Pick the wrong one and you will get weak pressure or no water at all. The good news is that the decision comes down to a single question: how far below the surface does your water sit?
This guide explains the difference between Sta-Rite shallow well and deep well jet pumps, which model suits which well, and how to measure your well depth before you buy.
The Key Difference: Well Depth
Jet pumps mount above ground and use suction to pull water up from the well. Physics limits how far suction alone can lift water, which is why there are two designs. Shallow well pumps use suction only and are limited to shallow water. Deep well pumps add a downhole ejector assembly so they can pull water from much greater depths.
Shallow Well Jet Pumps (0 to 25 ft)
A shallow well jet pump is the right choice when your water level is within about 25 feet of the surface. The jet assembly is built into the pump, installation is simple, and these pumps are self-priming once the chamber is filled. Sta-Rite's SN and HN series, including models like the Sta-Rite HND 3/4 HP shallow well jet pump, are common picks. Browse the full shallow well pumps collection to compare.
Deep Well and Convertible Jet Pumps (25 to 90+ ft)
When water sits deeper than 25 feet, you need a deep well jet pump. These use a two-pipe ejector assembly that drops into the well, allowing the pump to draw water from roughly 25 up to 90 feet or more. Many models are convertible, meaning the same pump can be configured for shallow or deep use by changing the nozzle and ejector. The Sta-Rite MSE deep well jet pump is a good example. See more in the deep well jet pumps collection.
Jet Pump vs Submersible Pump
Jet pumps are not your only option for a deep well. A submersible pump sits down inside the well and pushes water up, which is often more efficient for very deep wells. Jet pumps, by contrast, are easier to access and service because they live above ground. For a deeper comparison of pump mechanics, read our guide on jet pump vs centrifugal pump, and browse deep well pumps for submersible options.
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Still not sure which Sta-Rite jet pump fits your well? Compare shallow well and deep well jet pumps, or call (844) 378-6771 for a quick recommendation. |
How to Measure Your Well Depth
Before choosing, find your water level, not just the total well depth. The static water level is how far down the water sits when the pump is off. You can measure it by lowering a weighted string until it hits water, or check your well's drilling report. Use that figure, plus the seasonal drawdown, to decide between a shallow and deep well pump. If your water level is borderline around 25 feet, a convertible model gives you flexibility.
Final Thoughts
The choice between a Sta-Rite shallow well and deep well jet pump is really a choice about your water level. Measure first, then match the pump to the depth, and consider a convertible model if you are close to the 25-foot line.
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Need help reading your well report? Contact the ePumps team and we will point you to the right pump. |
FAQ's
How do I know if I need a shallow or deep well pump?
Measure your static water level, the distance from the surface to the water when the pump is off. If the water sits within about 25 feet, a shallow well jet pump works. If it is deeper than 25 feet, you need a deep well or convertible jet pump with a downhole ejector.
What is a convertible jet pump?
A convertible jet pump can be configured for either shallow or deep well use by changing the nozzle and ejector assembly. It operates as a shallow well pump from 0 to 25 feet, or as a deep well pump from about 25 to 90 feet, which makes it a flexible choice when your water level is borderline.
How deep can a shallow well jet pump pull water?
A shallow well jet pump relies on suction alone, which limits it to roughly 25 feet of lift. Beyond that depth, suction cannot reliably raise water, so you need a deep well jet pump with an ejector or a submersible pump.
Can I convert a Sta-Rite shallow well pump to a deep well pump?
Only if it is a convertible model. Convertible Sta-Rite jet pumps can be switched between shallow and deep configurations using the correct ejector kit and nozzle. A pump built strictly for shallow wells cannot be converted, so check the model's specifications first.
