Too curios to know how we professionally work with sound and the noise our pumps emit?

As an installer, ensuring that water pressure boosting systems operate quietly is crucial for customer satisfaction. However, noise from pipes or the booster pump is annoying and indicates issues in the water supply system. Since noise is easily transmitted via structures and components in the water supply system, it can be difficult to identify the source of the issue. Understanding the causes of noise and implementing effective solutions can enhance comfort and efficiency. Here is a practical guide to help you reduce noise in these systems:

Common Causes of Noise

  1. Outdated Pump Technology: Older, fan-cooled pumps can generate significant vibrations and noise, which can travel through the entire system.
  2. Pump Control Issues: Inefficient pump control can cause the pump to run at full speed continuously, even when water is not being used, leading to excessive noise.
  3. Improper Installation: Poorly secured pumps can transmit noise through the building structure.

Solutions to Reduce Noise

  1. Upgrade to Modern Pumps: Recommend changing to variable speed water pressure boosters equipped with brushless motors. We recommend Grundfos SCALA2, which is built on multistage pump technology, and it uses advanced water-cooling technology to minimize noise and vibrations. SCALA2 emits 44 db(A) in typical use and is one of the most silent water pressure boosters in the market, the noise level is comparable to household appliances like dishwashers. Note that a minor change in dB(A) means a lot to the human ear. We reduced the new generation of SCALA2 to 44 dB(A) and this 3 dB(A) reduction in sound pressure compared to the previous generation, translated to a 50% perceived noise reduction to the human ear. Source
  2. Secure Installation: Ensure the pump is securely mounted on a stable surface. Use anti-vibration mounts or pads to reduce the transmission of vibrations through the building. Get the best practices and essential tips on how to install SCALA2. Go to How to Install SCALA2.
  3. Flexible Connectors/ Flexible hoses: Install flexible connectors between the pump and the pipework. These connectors help absorb vibrations and reduce noise transmission through the pipes. We suggest using flexible hoses to ensure the safe and uncontaminated transport of potable water. Grundfos flexible hoses are drinking water approved(WRAS)for both hot and cold water, offering excellent resistance to kinks and durability with a robust construction that resists abrasion and crushing. You can find more information on our flexible hoses here.
  4. Regular Maintenance: Advise customers on the importance of regular maintenance to ensure optimal pump operation. Check and replace worn-out parts like bearings and seals to prevent noise caused by degradation.
  5. Proper Sizing: Ensure the pump is appropriately sized for the water demand. An undersized pump can struggle to meet demand, leading to increased noise. Need help sizing and selecting the right pressure booster for the task download our Perfect Water Pressure Boosting Selection Guide.
  6. Vibration-dampening: Ideally, install the product on a vibration-dampening rubber pad to create a quieter environment. This can help dampen the noise and the vibrations in the structures.

 

By addressing these common issues and implementing these solutions, you can significantly reduce noise in water pressure-boosting systems, leading to more satisfied customers and efficient installations. If you would like to know how we professionally work with sound and the noise our pumps emit watch this video. It will explain to you what we have changed in SCALA2 to make it one of the world’s most silent boosters.

If you are curious and want to know more about SCALA2 - Read more here!