it will only constantly remove the particles that grow/'agglomerate' into 'sludge'.

Use 'industrial' type filters and housings.... much cheaper and has a higher 'turnover' capacity due to less 'differential pressure' across the filters ... why 'burn up' extra pump amperage 'pushing' oil through a filter. Pump (with integral 'screen') goes BEFORE a recirculation filter --- 'pushes' oil, not 'pulls' oil. In-service recirc. filters will last exponentially longer than when in 'vacuum motive' service.