Swimming pool filtration uses different technologies to remove suspended particles from circulating water. Each technology has its own filtration principle, cleaning requirements, and operating characteristics. Effective filtration helps maintain water clarity and can reduce operating resource requirements. It works alongside disinfection, water chemistry control, and monitoring as part of the overall treatment process for a commercial aquatic facility.
Sand filtration is widely used in commercial pools. Water passes through a granular media bed, which captures suspended particles. Performance depends on the media, filtration rate, operating conditions, and any coagulation or flocculation used. Backwashing removes accumulated material, while inspection and maintenance help preserve performance. Media replacement requirements depend on its condition and the manufacturer’s guidance rather than a universal replacement interval.
Ceramic membrane filtration offers an alternative for new facilities and pool refurbishments. LiqTech QlariFlow™ combines silicon carbide membranes with a compact, modular design to support consistent water quality and efficient operation. Its automated cleaning and low-pressure operation can help reduce resource consumption. Membrane service life and operating savings depend on the installation and maintenance. Learn more about sand filters vs. membrane filtration.
The LiqTech QlariFlow™ Aquatics filtration system combines automated operation with remote monitoring and control. Its integrated monitoring system tracks flow, temperature, pressure, and differential pressure, helping operators follow filtration performance and identify changes that require attention. Authorized users can access operating data remotely through the configured monitoring connection, supporting oversight of the filtration equipment while routine on-site checks and maintenance remain part of facility operation. Learn how an Aquatics filtration system is operated and maintained.
During filtration, circulating pool water enters the ceramic membrane system through the feedwater inlet. Water flows into parallel channels within the membranes, which operate in a dead-end configuration. Pressure drives water through the porous membrane walls, while suspended particles are retained on the membrane surfaces according to the membrane’s filtration characteristics. The filtered water is then collected for return to the pool water treatment circuit.
The ceramic membranes form a physical barrier for suspended particles. Removal of specific microorganisms depends on the membrane specification and validated performance. Appropriate disinfection remains an essential part of the pool water treatment process.
The membranes are made of silicon carbide, a durable ceramic material with high permeability and resistance to heat and cleaning chemicals. These properties support efficient filtration and repeated cleaning over a long service life. Learn more about silicon carbide.
LiqTech QlariFlow™ combines ceramic membrane filtration with a compact, modular design. It offers flexibility in plant rooms where floor space and installation access are limited, making it suitable for new facilities and refurbishment projects. The selected system configuration and delivery route should be checked against the available access dimensions before installation.
After passing through the membranes, the filtered pool water leaves the system through the filtrate outlet and continues through the treatment circuit.
During operation, particles and organic matter accumulate on the membrane surfaces. Automated backwashing reverses the flow to remove accumulated material. Periodic cleaning in place, or CIP, addresses fouling that backwashing alone cannot remove. Cleaning requirements depend on water quality and operating conditions. Learn how ceramic membranes are cleaned.
Effective particle removal and controlled cleaning can help reduce chemical consumption as part of an optimized pool treatment process. Actual results depend on pool usage, incoming water quality, and operating conditions. Chemical dosing must continue to meet applicable disinfection and water quality requirements.
Alongside maintaining water clarity, ceramic membrane filtration can help operators use water, energy, and chemicals more efficiently.
Depending on the installation and operating conditions, ceramic membranes can support:
· Reduced chemical consumption
· Consistent pool water quality
· Improved water clarity
· Efficient operation with automated cleaning
· Lower water consumption for backwashing
QlariFlow can help reduce operating costs over the system’s service life. Savings and payback depend on the individual installation and should be assessed using project-specific operating data. Explore our Aquatics solutions and project references to learn more.
Dirty water in, filtered water out. Ceramic membranes do the filtering work.
