There may have been new swimming pool filtration equipment advancements. However, Blue Works can mention some filtration technologies that were gaining popularity at that time and might still be relevant in the current market.

Variable Speed Pumps:- Variable speed pumps have become increasingly popular due to their energy efficiency. These pumps allow users to adjust the pump's speed to meet the pool's filtration needs, resulting in significant energy savings compared to traditional single-speed pumps.

Cartridge Filter Advancements:- Manufacturers have been developing new cartridge filter designs that offer better filtration and efficiency. Some advanced cartridge filters come with larger surface areas, better pleating, and antimicrobial properties to improve water quality and reduce maintenance frequency.

Glass Media Filters:- Glass media filters have been gaining attention as an eco-friendly alternative to traditional sand filters. Glass media filters can provide finer filtration, requiring less backwashing and conserving water.

Smart Filtration Systems:- Swimming pool filtration systems integrated with smart technology have emerged, allowing users to monitor and control filtration remotely through smartphone apps. These systems can optimize filtration schedules and energy usage, enhancing overall efficiency and convenience.

High-Efficiency DE Filters:- Some manufacturers have introduced DE filters with improved design and materials, offering higher filtration efficiency and requiring less frequent DE powder replacement.

Hybrid Filtration Systems:- Hybrid filtration systems combine different filter types, such as sand and cartridge filters, to provide efficient filtration and extend the lifespan of filter media.

Advanced Backwashing Technology:- New backwashing technology has been developed to reduce water waste during the cleaning process, making pool maintenance more eco-friendly.

Saltwater Chlorinators with Built-in Filtration:- Some saltwater chlorinators now come with integrated filtration systems, streamlining the pool equipment and making installation and maintenance easier.

Ultrafiltration Systems:- Ultrafiltration systems, commonly used in commercial pools, are becoming more accessible for residential pools.

These systems can provide finer filtration, removing particles as small as 0.02 microns. Keep in mind that the swimming pool industry is continually evolving, and new advancements may have been introduced after my last update. It is always recommended to consult with pool professionals or research the latest products from reputable manufacturers to stay informed about the most recent swimming pool filtration equipment available in the market.