Practical water knowledge
Knowledge Center
Clear guides for understanding water pumps, reverse osmosis, product selection, and everyday system decisions.
Use these articles to prepare for a product discussion, understand important terms, or explore the technology behind the VAS product range.
Flow and pressure
Water Pumps
Build a practical foundation before comparing pump duties and models.
Water Pumps
What Is a Water Pump?
A practical introduction to pump purpose, basic components, and common system roles.
Water Pumps
How Centrifugal Pumps Work
Follow water from the inlet through the rotating impeller and out to the system.
Water Pumps
Main Types of Water Pumps
Understand the broad pump families used for transfer, pressure, drainage, and circulation.
Water Pumps
Open, Semi-Open and Closed Impellers
Compare open, semi-open, and closed impeller constructions, their best uses, and common examples.
Water Pumps
How to Select a Pump
Collect the essential operating information before comparing pump models.
Water Pumps
Understanding Flow and Head
Learn the two core values used to describe a pump duty.
Water Pumps
Pump Applications
See how pump duties differ across industrial, commercial, municipal, and household systems.
Water quality
RO Systems
Understand the stages that support dependable reverse-osmosis treatment.
RO Systems
What Is an RO System?
A clear introduction to the components and purpose of a reverse-osmosis water system.
RO Systems
Is RO Water Safe for Everyday Drinking?
A balanced guide to common questions about RO water, taste, minerals, and system care.
RO Systems
Maintaining Your RO Dispenser: What Owners Should Know
Understand filter roles, routine care, and the signs that tell you it is time to check the system.
RO Systems
How Does RO Work?
Follow water through pretreatment, membrane separation, storage, and final dispensing.
Need Help Applying This Information?
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