APPARATUS, INSTALLATIONS AND SYSTEMS FOR WATER COLLECTION SUPPLY AND SANITARY PURPOSES, AND FOR THE SEPARATION OF SOLIDS AND PARTICULATES FROM WATER, SEWAGE AND INDUSTRIAL EFFLUENT AND FOR THE MANAGEMENT, FLOW, SEPARATION. SCREENING, STORAGE AND TREATMENT OF WATER COMPRISING FILTERS, WATER PUMPS, FLOW REGULATORS, FLOW CONTROL REGULATORS, SCREENS AND SCREEN PLATES, BRUSHES, VALVES, VORTEX VALVES, BACK PLATES, PIPES AND DUCTING, STORAGE TANKS; DRAINAGE AND SOAK AWAY SYSTEMS AND INSTALLATIONS, COMPRISED OF PLASTIC MATRIX BLOCKS USED TO CONSTRUCT AND GIVE ACCESS TO SOAK AWAYS AND INFILTRATION SYSTEMS; WATER ATTENUATION APPARATUS AND INSTALLATIONS, NAMELY, SURFACE WATER INFILTRATION AND SOAK AWAY SYSTEMS COMPRISING FILTERS, PLASTIC MATRIX BLOCKS USED TO CONSTRUCT AND GIVE ACCESS TO SOAK AWAYS AND INFILTRATION SYSTEMS, AND GRAVEL PITS; REPLACEMENT PART AND FITTINGS FOR ALL THE AFORESAID GOODS