Since there is no backwash needed what prevents the media bed from getting fouled?
The media operates in continuous up flow backwash condition therefore do not filter anything from the water. The SP3 media works as a catalyst only, not as a filtration media therefore there is accumulation of anything in the suspended bed of the SP3 media. The media holding tank contains about 25-30% media and the rest of it is freeboard backwash volume.
