Maintaining your Hayward-compatible swimming pool filter ensures optimal performance and extends cartridge life. Keep an eye on the pressure gauge and take action when PSI increases 8–10 above baseline. Rinse your filter cartridge every few weeks during swimming season, using a garden hose to spray gently between pleats from top to bottom to remove surface debris and maintain proper water flow. Every few months, consider a deeper clean by soaking the cartridge overnight in filter cleaning solution or a detergent to dissolve oils, sunscreen, and mineral deposits. Inspect cartridge pleats regularly for damage, tears, or permanent flattening, and simply replace filter cartridges every 12–18 months, or when needed.