The Pipeline Filter PLF35000 is a high-performance cartridge filter designed to provide DE-level water clarity with the ease of a cartridge system. While NSF standards require filters to reduce turbidity by 70% within five turnovers, the PLF35000 achieves this in just one turnover—working five times faster to deliver crystal-clear water with less maintenance and greater efficiency. Its large, uniform tank ensures 360° water circulation, allowing for even distribution throughout the filter media. The engineered pleat spacing enhances debris capture and maximizes surface area, while the advanced core design—with 64% larger openings than competing models—optimizes flow distribution and extends filter life. With a 35,000-gallon turnover capacity in just 6 hours for commercial pools and an impressive 96,000-gallon turnover in 8 hours for residential pools, the PLF35000 is built for superior performance in larger applications. Recognized for its outstanding efficiency and reliability, this filter has earned three consecutive Residential Pool Filter Awards and was named 2022’s Most Innovative Product of the Year. Its patented double-locking system allows for quick, safe depressurization, making maintenance significantly easier compared to traditional clamp-based designs.
In general terms, you’ll know it’s time to clean your filter when the Filter Pressure, as displayed on the pressure gauge, rises to the threshold recommended by the manufacturer - this is usually 7-10 lbs. above the “clean” pressure. Consequently, there are two key steps: 1) Confirm from your owner’s manual the pressure increase recommended for cleaning, and 2) Make note of your filter pressure when the filter is clean(ed) for reference purposes.
Estimates of filter cartridge lifespan vary widely from 1-2 years to 3-5 years and all points between. Where you might find yourself within those ranges can be influenced by your immediate environment, the square footage of filter media relative to pool size, and the extent to which your pool is subjected to body oils, lotions, hair products, etc. A great way to maximize filter cartridge life is to use a pre-filter which can intercept much of what otherwise reaches your filter cartridges.
The three main categories of pool filters are: DE Filters, Cartridge Filters, and Sand Filters which, respectively, can filter particles as small as 5, 10, and 20 microns. Cartridge Filters are removed from the filter and cleaned with running water and a cleaning solution, if necessary. DE and Sand Filters are subjected to “backwashing” pool water to clean debris from the filter media. This process can commonly take 2-300 gallons of water that will then need replaced, resalinated, and rebalanced. Cartridge Filters are the most water-efficient and are easiest to maintain, while DE filters give you the most effective filtration.
Instant, phone-based filter diagnostics. The CirrusSense screws into any 1/4" pressure port, and connects via Bluetooth to the Pool Filter Pro app, so you can get alerts to back-wash or clean your cartridge.