Fluid Sand Towers (FST’s) utilize the most efficient method of aerobic biological filtration available and thereby occupy a very small footprint.
Biosystems FST’s fluidize uniformly and quickly due to a specially designed sand diffuser bowl, used in conjunction with the carefully graded filter media.
Includes a unique anti-siphon device which guarantees that in the event of a power/flow interruption, no media will back-siphon into the supply pipework.
Lower section manufactured from impact resistant Polypropylene, and the top section from clear acrylic to enable easy determination of the operating run level.
All units come complete with supply pipe work, oolitic sand, replaceable sand diffuser bowl and top-flow sight glass.
It is advisable to discharge the outlet flow from the FST into a Re-Gas/ Bio-Tower.
