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SCALA2 115-Volt Booster Pump

$92754
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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Water-cooled motor reduces noise and enhanced performance
  • Sensor automatically adjusts and controls inlet pressure
  • Designed to run dry without damaging the motor
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Product Details

SCALA2 is a fully integrated water booster pump providing perfect water pressure in all taps at all times. SCALA2 has an intelligent pump control that automatically adjusts performance to both inlet pressure and water consumption in the home. Thanks to a water-cooled motor, SCALA2 even offers one of the lowest noise levels of any booster on the market. If the pressure drops below the desired level, SCALA2 boosts its operation immediately to compensate for the loss of pressure.
  • SCALA2 is the perfect choice for residential buildings with up to 3 floors and 8 taps
  • Perfect water pressure: intelligent pump control adjusts operation automatically
  • Low noise: as quiet as a modern dishwasher (47 dB(A) in typical use)
  • Easy selection: 1 variant for all domestic boosting needs
  • Easy installation: compact, all-in-one solution, plug-and-pump
  • Easy to operate: user-friendly control panel
  • Reliable operation: dry-running protection, anti-cycling
  • Long lifetime: quality-tested to perfection, maintenance-free
  • For higher quality and longer lasting booster pump see Model #CMBE 1-44 (Internet #303832809)
  • If purchased to replace an older SCALA2, you MUST use the nuts and threads of the new unit, and new unit will appear to be leaking internally if new nuts and threads are not used
  • Return Policy
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Specifications

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Questions & Answers

22Questions
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Q:Can i mount this under my kitchen sink? If so, do i need one for cold and and one for hot?
by|Jun 28, 2022
1 Answer
Answer This Question

A:  Typically you would mount a pressure booster on the water main coming into the structure so that it raises the pressure on both the hot and the cold water. However, your question makes me concerned that like many people you may be misdiagnosing your problem. Pressure is invisible, you cannot look at flowing water and determine if the pressure is high or low. Pressure is measured with a gauge when the water is shut off. When you open the faucet you are creating a pressure drop and the pressure goes to zero. What you see is flow rate. Flow rate has very little to do with pressure. However many people falsely assume it does. For example, my home sits below sea level. The water tower is on a tall hill on the other side of town. As a result my water pressure is 120 PSI. Roughly 3 times normal water pressure. However the water just trickles out of my shower head. This is because my home is serviced by a 150 year old water main that is clogged with rust. I lack water volume. Normal residential water pressure is 40-60 PSI and normal water supply volume is 8-14 Gallons per minute. When trying to cure a water problem you want to start by determining both your base line pressure and volume. Home Depot sells gauges you can screw onto your hose connection that will measure the pressure. Then to determine your water supply volume, take a five gallon bucket and use a timer to see how long it takes to fill. Once you know your pressure and supply flow rate in gallons per minute you can determine if you have a pressure problem, a water supply volume problem or both. Pressure can be raised with a pump. The solution for inadequate volume is to add water storage. You can only take water at the rate the municipality supply gives it to you. Storage can be added so that water comes in and is stored until it’s needed. Then by using a combination of the incoming water and the stored water, sufficient supply is available when it is needed. When the problem is both volume and pressure a combination of both can be employed. If you this is confusing I certainly understand. You are welcome to give me a call and I can explain further. Many people install pressure boosters and dissatisfied because it does not meet there expectations. Therefore it is always best to determine the exact nature of the problem before investing in a solution. Chris 978 651 3301

by|Jun 28, 2022
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    Q:what's the gpm capability?
    by|May 3, 2022
    1 Answer
    Answer This Question

    A:  The performance of any pump is not a static figure. The output is effected by the specifics of the application. The piping of each job will create unique resistance. For this reason all pumps are rated on a graph called a pump curve. On one axis is the height range the pump can lift and on the other flow rate. The graph or curve illustrates the pumps unique performance across its operating range. If you scroll down the Home Depot product listing page, you will find a section labeled “Info and Guides” There you will find PDF’s of product documents. If you open the one labeled specification sheet you will find the pump curve. This specific pump is even more confusing because it can be used in very different applications. It can be used as a shallow well pump. An example would be if it were pulling water out of a pond to supply a cottage. In that application it is pulling from a virtually infinite supply of water on the same level. Another application would be as a pressure booster. This is the application that is most misunderstood. Pressure is invisible, you cannot assess pressure by looking at flow. Pressure is measured with a gauge with the water off. When you have a weak stream of water that is not necessarily low pressure. That is poor flow. Raising pressure does not by definition increase the flow. If you are on municipal water, you can only take in the water at the rate the municipality gives it to you. You can’t draw it in as if the water main is a straw. Often the solution is water storage rather than a pump. You eliminate the effect of inadequate supply by storing water ahead of time. An example of poor pressure would be having plenty of water on the lower part of the house but the pressure is insufficient to push it up to the second floor. Because pressure cannot be seen with the eye. if a person feels dissatisfied with their water supply it is always a good idea to get concrete facts. First I measure the pressure with a gauge. Home Depot sells gauges you can screw on to a hose hydrant to take a reading. Forty to sixty psi is normal and what you want. Second I take a five gallon pale and a watch and go to hose connection next to the water meter. By timing how long it takes to fill the five gallon bucket, with the hydrant full opened, I determine the flow rate. Six to twelve gallons per minute is normal. If it turns out the only problem is pressure I utilize a pump. If the problem is flow rate I will use a diaphragm style well tank to add storage. And if it’s both pressure and volume, I utilize a pump and storage to cure the problem. I hope this helps. I am sorry to be so lengthy but I have seen many people install a pump when in reality there pressure is fine. If you have further questions you are welcome to give me a call at 978 651 3301 Chris

    by|May 4, 2022
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      Q:Will this 3/4 hp pump adequately replace a 1 hp 10 yr old Walrus booster pump? Or do I need to go with a Scala 1 hp equilavent?
      by|Dec 11, 2021
      1 Answer
      Answer This Question

      A:  I am sorry but I can not give you a definitive answer. However, hopefully if I explain why it will enable you to answer your own question. Pumps are not rated in Horse Power, motors are. Pump manufacturers have gotten in the bad habit of stating the HP of the motors they use to drive there pumps. But this tells you very little in and of itself. I liken it to auto manufactures that brag about a models horse power being more than its competition. The implication being that there auto is faster. However this is often not the case due to other factors. Pump performance is effected by the horse power but the real determining factor is the pump head. The impeller and volute are designed to use the motors force to generate very specific performance. Therefore I often encounter pumps with the same HP motors that have vastly different performance. Pump performance is rated on a graph called a pump curve. On one axis you have height, because pumps fight gravity or gravity is used as constant representation of resistance , on the other you have flow rate. The curve or graph represents pump performance across the pumps range of operation. If you scroll down the Home Depot product listing page you will find the header "Info and Guides". There you fill find a PDF of the brochure. It contains the pump curve for this unit. By comparing this pump curve to the pump curve for the unit you are replacing you will not exactly how they will differ.

      by|Dec 14, 2021
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        Q:Does it need to be hardwired or does it have a plug on it?
        by|Jul 25, 2021
        3 Answers
        Answer This Question

        A:  You only need to plug it in.

        by|Jul 26, 2021

        A:  It has plug for outlet

        by|Jul 26, 2021

          A:  This version of the Scalla is 115V and comes with a plug.

          by|Jul 26, 2021
            Showing 1-4 of 22
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            Customer Reviews

            3.4 out of 5
            (94)
            • 3.4
              out of 94 reviews
            • 42%recommend this product
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            Showing 1-10 of 94 reviews
            This pump worked great. It's quiet and with the variable speed controll you get the pressure you ...
            This pump worked great. It's quiet and with the variable speed controll you get the pressure you need where you want it to be.
            by
            • DIY
            • Verified Purchase
            • Recommended
            The pump received had obviously been a returned item with markings removed from the box, thread s...
            The pump received had obviously been a returned item with markings removed from the box, thread sealant on the connections, impressions from securing bolts, and previous shipping labels removed. Returned it the same day to our local Home Depot. They took it back with no problems and apologies.
            by
            Response from chrisMar 8, 2018
            I am sorry for your inconvenience and very much appreciate you letting us know. Grundfos had a recall on this product and has specifically asked us to send them back all Scalla's that are returned unless we are certain they are in an unopened state. In fact because of the recall they have taken them back no questions asked. As such I am very surprised by this. If you have the time and could give me a call I would be very interested in your order number so i could research that specific unit. With your order number I can pull the serial number. That will me to investigate the process here and to make sure that we are not being shipped reconditioned product. Thanks Chris 978 651 3301
              Excellent pump for multi story house! I am using this pump to swap out a Sima booster pump that i...
              Excellent pump for multi story house! I am using this pump to swap out a Sima booster pump that is non adjustable (I will keep the Sima as a backup). The Scala2 is very quiet when it turns on because of the variable speed feature. I have it adjusted to 51 psi pressure which is 10 more than the Sima ever reached. My incoming pressure is10 psi from a neighborhood water tower. The constant pressure is not totally constant for me because I have a 20 gallon bladder tank installed which gives me a 2 gallon cushion before it turns on. This should make the pump last longer, and the pressure varies from 55psi down to 46psi which is ideal for my family. Slight moisture from the seals. Grunfos says will stop after it wears in (only had it for 3 weeks). Highly recommended.
              by
              • Verified Purchase
              • Recommended
              3 found this review helpful
              Out with the old, in with the new
              My plumber swapped it out in an hour.
              by
              • Verified Purchase
              Extremely poor design, DO NOT BUY
              My third pump is leaking, just like these all do. Terrible product. I was just told by my point of sale that the warranty on them starts as soon as they're manufactured, so the clock is ticking while it's on the shelf hoping someone is dumb enough to buy one. I only went with the third one because I was assured they had found the problem and resolved it, it wasn't going to pop again like the previous ones. I will never buy anything from this company again in fact.
              by
                DO NOT BUY!!! NO ACTUAL WARRANT
                Purchased the Scala 2 in Feb of 2021 and installed with ease. Last Friday (9/23/22) it started to leak internally. I have spent last 4 days trying to get help with the warranty. You call and only get automated service that asks for zip code to identify your local service company only to be cut off by the automated service saying there is an error good bye. The warrant says to go through point of sale but Home Depot tells me that they can’t do anything to contact Grundfos. DO NOT BUY.
                by
                  Pump leaked and was returned promptly...
                  Pump leaked and was returned promptly
                  by
                  • Verified Purchase
                  So far , So good. Everything is working great !...
                  So far , So good. Everything is working great !
                  by
                  • Verified Purchase
                  Works well
                  Our pump died after 15 years. This was the replacement we bought, same brand. It's working very well.
                  by
                  • Verified Purchase
                  • Recommended
                  Easy install since it matched up with replacement pump. ...
                  Easy install since it matched up with replacement pump. Quiet and works well!
                  by
                  • Verified Purchase
                  Showing 1-10 of 94 reviews

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