The Jandy®TruChlor™Erosion Feeder offers optimal performance and operation with any equipment setup. Made for variable-speed pumps and engineered specifically to work with variable-speed pumps for convenient and steady chlorine flow—even in lower flow conditions. The Jandy TruChlor Erosion Feeder provides hassle-free, convenient chlorination for in-ground pools and offers optimized operation with variable-speed pumps—even at lower pump speeds.