Grundfos SCALA2 Water Booster Pump w/ NEMA 5-15P Plug (115V)
Product Highlights
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115V
145 PSI
24 Month from Date of Delivery & 30 Month from Manufacturing Date Warranty
Description
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Note: Warranty is 24 months from the date of delivery and 30 months from the manufacturing date
With the new GRUNDFOS SCALA2 water booster pump, perfect water pressure is finally available in an all-in-one unit. Now you can enjoy the luxury of a perfectly comfortable shower any time of day – even when your family is using the many other taps in your home, for instance in the bathroom, the kitchen and the garden. And the SCALA2 is so compact and quiet, you won’t even know it’s there.
SCALA2 comes equipped with intelligent pump control, which means that it automatically adjusts operation to deliver the water pressure you like. The integrated sensor detects if the inlet pressure varies or if there are several taps open and immediately tells the pump to boost the pressure. And it happens so fast that you won’t notice any change in your water pressure at all
Features
- Intelligent pump control
- Water-cooled, permanent magnet motor
- Dry running protection
- Self-priming
- User friendly control panel
- Outdoor-ready
Specs
| Type: |
Booster Pump |
|---|---|
| Voltage: |
115V |
| Max Pressure (PSI): |
145 |
| Max Head (Ft): |
148 |
| Warranty: |
24 Month from Date of Delivery & 30 Month from Manufacturing Date |
| Phase: |
1 |
| Frequency: |
60 Hz |
Grundfos is the largest pump manufacturer in the world, based in Denmark, with more than 19,000 employees globally.
The annual production of more than 16 million pump units, circulator pumps (UP), submersible pumps (SP), and centrifugal pumps (CR). Grundfos also produces electric motors for the pumps as well as electric motors for separate merchandising. Grundfos develops and sells electronics for controls for pumps and other systems.
Here's supplementary content for the Grundfos SCALA2 Water Booster Pump page — insert after the "Specs" table, before the Grundfos company paragraph:
Understanding Low Water Pressure — And How the SCALA2 Solves It
Common Causes of Low Home Water Pressure
Before installing a booster pump, it helps to understand what typically causes low pressure in the first place:
- Municipal supply limitations — some areas simply have lower incoming pressure from the water main, especially at higher elevations or the end of a distribution line
- Well water systems — homes on private wells often experience pressure drops as the well tank cycles or during high-demand periods
- Multi-story homes — pressure naturally decreases as water is pushed to upper floors, since gravity works against the flow
- Simultaneous fixture use — pressure drops noticeably when multiple showers, faucets, or appliances draw water at the same time
- Long distribution runs — larger homes with extensive plumbing runs from the main supply can experience friction loss over distance
The SCALA2 addresses all of these scenarios by actively boosting pressure at the point where your home's plumbing system begins, rather than relying entirely on whatever pressure arrives from the source.
How Intelligent Pump Control Actually Works
Unlike older, simpler booster pumps that run at a single fixed speed, the SCALA2 continuously monitors pressure through an integrated sensor. When it detects a drop — whether from a single tap opening or several fixtures running simultaneously — it automatically adjusts pump speed in real time to maintain your target pressure. This happens quickly enough that you won't notice the fluctuation that would otherwise occur, whether you're the only one using water or the whole household is showering, running the dishwasher, and watering the garden at once.
Built-In Protection Features
- Dry running protection — automatically shuts the pump down if it detects no water is present, preventing damage to the motor from running dry (a common failure point in less sophisticated pump designs)
- Water-cooled, permanent magnet motor — uses the water passing through the pump itself to help manage motor temperature, contributing to quieter, more efficient, and longer-lasting operation
- Self-priming — the pump can draw water into itself without manual intervention, simplifying both initial installation and recovery after maintenance or a dry-run shutdown
Outdoor-Ready Design
Unlike booster pumps that require strict indoor, climate-controlled installation, the SCALA2 is rated for outdoor placement — offering more installation flexibility for homes where interior mechanical space is limited, such as placing it near an exterior water entry point or in an unheated garage or utility area (with appropriate freeze protection considerations for Illinois winters).
Compact, Quiet, All-in-One Design
Because the SCALA2 integrates the pump, pressure sensor, and control electronics into a single compact unit, it avoids the bulkier footprint and more complex plumbing of older multi-component booster systems — while its quiet operation means it can be installed in mechanical closets or utility rooms without becoming a noticeable household noise source.
Is a Booster Pump Right for Your Home?
Consider the SCALA2 if you experience:
- Weak shower pressure, especially on upper floors
- Noticeable pressure drops when multiple fixtures run simultaneously
- Inconsistent water pressure throughout the day, particularly with well water systems
- A larger home where water pressure diminishes significantly by the time it reaches distant fixtures
Professional Installation Matters
Because the SCALA2 integrates directly into your home's main water supply line and includes both electrical and plumbing components, correct installation is essential for both performance and the pump's protective features to function properly. Our licensed plumbers will:
- Assess your home's current water pressure and identify the best installation point
- Install the pump inline with your main water supply
- Complete the 115V electrical connection per code
- Configure intelligent pump control to your desired pressure target
- Test dry-running protection and overall system performance across multiple fixtures
Frequently Asked Questions
Will this pump work with my well water system?
Yes — the SCALA2 is well suited to boosting pressure from well systems, particularly homes experiencing pressure fluctuations as the well tank cycles.
Can it be installed outdoors in an Illinois winter?
While the unit is outdoor-rated, exposure to freezing temperatures still requires appropriate protection or placement in a location shielded from extreme cold; our plumbers can advise on the best installation location for your climate.
How does the warranty work exactly?
Coverage runs for 24 months from the date of delivery to you, or 30 months from the unit's manufacturing date — whichever provides the applicable coverage window; our team can help clarify which applies to your specific purchase.
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