SV-F2 „Supply of water loss detection unit” SV-F3 „Supply of CCTV mobile unit for the video inspection of pipes” SV-F5 „Supply of sludge disposal units” SV-F6 „Supply of sludge loading units” SV-F7 „Supply of sewer dredging and cleaning mobile units” SV-F8 „Supply of mobile units for the transportation of solid waste resulting from sewerage pumping stations” SV-F9 „Equipment for the PIU”