Syphon Tank Capacities by admin · September 24, 2018 Precast Drawings Siphon Tanks 500 Gallon Tank with Bell Type Syphon 500 Gallon Tank with Flout Type Syphon 750 Gallon Tank with Flout Type Syphon 1000 Gallon Tank with Flout Type Syphon Flout Dosing Cycle Click Drawing Below for Larger, Sharper View in PDF File.