AST Endurance Filter: Revolutionary Automatic PolyGeyser Backwash Pond Filtration Videos 121 views You may also like Danner Pondmaster Clearguard Pressurized Pond Filter UV Installation Koi & Fish Pond Filters | Water Garden Filtration 03:30 Building the Ultima 02:57 Ultima II Aqua Filter Backwash Overview Endurance Filter: When NOT to drain the sludge or How to avoid Bead Loss in Your Endurance filter AST Endurance 2000: Setting the Auto-Backwash Timing for Easy hands-free Backwash! AST Endurance Filter: Auto-Purge Sludge with Air! Cleaner water through PolyGeyser Technology AST Endurance Filter: Gravity Fed, Airlifted System- No water pumps required! PolyGeyser Backwash AST Endurance Filter: Water Pumped Configuration, PolyGeyser Technology AST Endurance™ Bead Filter 05:06 Bubble Bead Skid Filtration with Pump Assisted Backwash for Powerful Cleaning! 02:52 Backwash Demo of Bubble Bead Filter! Robust, dependable filtration for ponds! «1234»Page 2 of 4