The Basics of a Jet Pump
Summary
TLDRThis video covers the fundamentals of jet pumps, explaining how they work and the differences between shallow and deep well jet pumps. Jet pumps, typically used in residential and light commercial settings, lift water from the ground through a suction pipe. The depth of the water determines the pump type, with shallow well pumps lifting up to 25 feet and deep well pumps reaching over 160 feet. The video also discusses the importance of the jet ejector, which increases suction and enables water lifting from greater depths.
Takeaways
- 💧 Jet pumps are used for extracting water from wells and bodies of water through a suction pipe.
- 🌍 Jet pumps are popular in warmer climates and areas with a high water table.
- 🚰 They are typically used for residential water supply, irrigation, and pressure boosting applications.
- 📏 Shallow well jet pumps can lift water up to 25 feet, while deep well jet pumps can lift over 160 feet.
- 🧩 The jet ejector is the key component that allows the jet pump to lift water from deeper wells.
- 🏞 A shallow well ejector is mounted in the pump, while a deep well ejector is installed inside the well.
- 🔄 In a deep well setup, the system uses a two-pipe configuration: one for lifting water and another for returning water.
- ⚙️ Convertible jet pumps can be used for both shallow and deep well setups by adjusting the jet ejector.
- 🛠 Jet ejectors must be carefully matched to the pump and well system for optimal performance.
- 📹 Future videos will cover how to properly size jet ejectors for different applications.
Q & A
What is a jet pump and where is it commonly used?
-A jet pump is a type of pump mounted above ground that lifts water out of the ground or a body of water through a suction pipe. It is commonly used in residential and light commercial irrigation, home water supply, and pressure boosting applications, particularly in warmer climates and areas with a high water table.
What determines whether a shallow or deep well jet pump is required?
-The depth to water determines which type of jet pump to use. Shallow well jet pumps are suitable for lifting water from depths up to 25 feet, while deep well jet pumps can lift water from depths over 160 feet.
How does a jet pump work?
-A jet pump works by creating suction through a component called a jet ejector. Water passes through a jet nozzle at high pressure, increasing its velocity while reducing pressure, which creates suction. This suction helps lift water from the well or water source.
What is a jet ejector, and how does it function in a jet pump?
-A jet ejector consists of a carefully matched nozzle and venturi. Water is sent through the nozzle at high pressure, increasing velocity while reducing pressure. This creates suction around the nozzle, drawing in water and helping lift it to the surface.
What are the limitations of shallow well jet pumps?
-Shallow well jet pumps can lift water from up to 25 feet, with some setups extending that to 28 feet. However, as the distance from the pump to the water level increases, the capacity decreases since more water is required to feed the jet ejector.
How does the ejector configuration differ between shallow and deep well jet pumps?
-In shallow well setups, the ejector is mounted in the pump, in front of the impeller, which increases suction. In deep well setups, the ejector is located underwater, and a two-pipe system is used to transport water to the pump.
What role does the two-pipe system play in a deep well jet pump?
-In deep well jet pumps, the two-pipe system allows pressurized water to be sent down to the ejector, which then reroutes and returns water along with additional supply from the well. One pipe brings water up, while a smaller return pipe circulates water back down to the ejector.
What is a convertible jet pump?
-A convertible jet pump is one that can be configured for both shallow and deep well applications. The jet ejector can be installed in different configurations based on the well depth.
Why is it important to carefully match jet ejectors to the pump and system?
-Jet ejectors must be carefully engineered and matched to the specific pump and system needs. A mismatched jet ejector can lead to inefficient operation and reduced water lifting capacity.
How can someone get help selecting the right jet pump?
-For help selecting the right jet pump, viewers are encouraged to check out links provided in the video description or reach out through comments or phone calls for personalized advice.
Outlines
💧 Introduction to Jet Pumps
In this segment, the speaker introduces jet pumps, explaining their importance in areas with warmer climates and high water tables. Jet pumps are above-ground pumps that draw water through a suction pipe, making them popular for residential, commercial irrigation, home water supply, and pressure boosting. The speaker explains that the depth to water determines whether to use a shallow or deep well jet pump.
🚿 How Jet Pumps Work and Their Limitations
This part focuses on how jet pumps work. Shallow well jet pumps lift water from up to 25 feet, while deep well jet pumps can reach over 160 feet. The explanation introduces the concept of a jet ejector, a component that enables these pumps to reach such depths. The discussion also touches on centrifugal pumps, noting that they are limited to about 20 feet without a jet ejector.
🔧 Understanding Jet Ejectors
Here, the speaker dives deeper into the functionality of jet ejectors, comparing the effect to covering the nozzle of a garden hose—speed increases, but pressure decreases. The low pressure around the nozzle tip causes suction to draw more water into the stream. This principle helps increase the efficiency of the pump, especially when harvesting water from deeper levels.
🏞 Shallow Well Jet Pumps
This section explains the workings of shallow well jet pumps, where the ejector is placed in front of the impeller to increase suction. The distance from the pump to the water source is discussed, with the limitation of reaching a maximum depth of about 28 feet. The speaker also notes that the amount of water needed to feed the ejector impacts the pump's discharge flow, decreasing capacity as distance increases.
🌊 Deep Well Jet Pumps
In this paragraph, the deep well jet pump system is explained. Here, the ejector is placed under water in the well, sending pressurized water through the ejector to return additional water to the surface. A two-pipe system is used to pump water from deep wells, with a clear distinction between the supply and return lines. The explanation covers convertible jet pumps, which can switch between deep and shallow configurations.
🛠 Jet Ejector Parts and Customization
The speaker showcases two types of jet ejectors: a deep well ejector and a shallow well ejector. Convertible jet pumps, which can be used for both deep and shallow wells, are also introduced. However, the speaker emphasizes that jet ejectors need to be carefully matched to the pump's specifications to ensure compatibility and efficiency.
🔍 Conclusion and Future Topics
In the closing remarks, the speaker summarizes the key points about jet pumps, including their types and how they work. The audience is encouraged to watch for a future video on sizing jet ejectors. Viewers are also invited to ask questions in the comments or contact the team directly. Finally, a call to action is made to like and subscribe for more related content.
Mindmap
Keywords
💡Jet Pump
💡Shallow Well
💡Deep Well
💡Ejector Kit
💡Nozzle
💡Venturi
💡Suction
💡Convertible Jet Pump
💡Two-Pipe System
💡Pressure Boosting
Highlights
Jet pumps are popular in areas with warmer climates and a high water table.
Jet pumps are mounted above ground and lift water through a suction pipe.
Jet pumps are typically used for residential and light commercial irrigation, home water supply, and pressure boosting.
The depth to water determines whether to choose a shallow well or deep well jet pump.
Shallow well jet pumps can lift water from up to 25 feet.
Deep well jet pumps can lift water from over 160 feet.
Jet pumps use a component called a jet ejector to lift water from deep wells.
Jet ejectors consist of a nozzle and venturi, increasing water velocity while reducing pressure.
Jet pumps convert pressure into velocity, allowing water to travel farther, similar to placing a thumb over a garden hose.
For shallow wells, the jet ejector is mounted in the pump before the impeller to increase suction.
Shallow well jet ejector setups can lift water up to 28 feet.
As the distance from the pump to the water level increases, the discharge flow decreases.
In deep well configurations, the ejector kit is placed underwater and uses a two-pipe system.
Convertible jet pumps can be configured for both shallow and deep wells using specialized jet ejectors.
Ejectors must be carefully matched to the pump and system requirements for optimal performance.
Transcripts
[Music]
hi Chris with our sewers here and today
we're going to talk about jet pumps
we're going to talk about what jet pumps
are how they work as well as what it
means to have a shallow or deep well jet
pump jet pumps are popular in areas with
warmer climates and areas with a high
water table if you aren't familiar with
jet pumps they are pumps that are
mounted above ground and lift water out
of the ground or a body of water through
a suction pipe they're typically used in
residential and light commercial
irrigation home water supply and
pressure boosting applications when
selecting a jet pump the depth to water
will determine which of the two types to
choose from shallow well jet pumps can
lift water from up to 25 feet while
default jet pumps can lift water from
over 160 feet the component that enables
a jet pump to lift to such depths is
known as a jet ejector a pump without a
jet typically can only lift up to about
20 feet or so in some cases at sea level
you may get a little bit more than that
out of like a centrifugal pump or some
type such as that but jet pumps are
where it's at in terms of deep well
harvesting of water a jet ejector or
ejector kit consists of a carefully
matched nozzle and venturi the nozzle
receives water at high pressure as the
water passes through the jet its
velocity is greatly increased but the
pressure drops just like when you hold
your thumb over a running garden hose
what you see is the water is able to
travel quite a bit farther but in
reality what you're doing is decreasing
the pressure and by doing that the
energy is converted to velocity so it
throws the water that much farther the
greatly increased water speed plus the
low pressure around the nozzle tip is
what causes suction to develop around
the jet nozzle water around the jet
nozzle is drawn into the water stream
and carried along with it for shallow
wells the ejector is mounted in the pump
in front of the impeller placing the jet
in front of the impeller increases
suction considerably from what I meant
previously the limitations of about 20
to 25 feet and now you're able to get
much more up to 28 feet on a shallow L
ejector setup but as the distance from
the pump to the water level increases
the amount of water used by the jet also
increases so discharge flow is affected
because it decreases as more water is
used to feed the ejector so as distance
increases capacity decreases for deep
wells the ejector kit is located in the
well under water the deep well ejector
works in the same way as the shallow oil
objector pressurized water is sent
through the ejector from the pump the
ejector then reroutes and returns water
plus an additional supply from the well
to a level where the jet pump can lift
it the rest of the way which in a deep
well environment uses a two pipe system
you have the line that's traveling up
and then you have a return line which is
most often a smaller diameter which is
why you'll see on convertible jet pumps
a two Inlet configuration I have a
couple of ejector parts on my right here
I have a deep well ejector which this is
just a football that hooks on to the
bottom of this and then this is a
shallow L ejector like what's mounted to
the pump here on my left some jet pumps
like this one here are convertible
meaning that the jet ejector can be
installed for deep or shallow L
configurations ejectors must be
carefully matched to the pump and system
needs and not just any jet can work for
any jet pump they have to be specially
engineered to get things right we will
cover how to size jet ejectors in a
future video so keep an eye out so that
is more or less the basics of a jet pump
if you need help selecting a jet pump
check out the link in the description
below we've got a video for you if you
have any questions leave those in the
comments or give us a call don't forget
to hit the like and subscribe button for
more great content and thanks for
joining me today we'll see you next time
[Music]
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