The SV series have vortex impellers and large pump casings for pumping light effluent, sewage and waste containing fibrous material, submerged debris and solids. Due to impeller material, SV-150(A/V) and SV-250(A/V)are suited to pumping soft and floating solids, but the SV-400(A) and SV-750(A) can pump hard solids and have base plates for portable use. For SV-750 models, a 89mm lever lock connection kit with a galvanised iron extension pipe, is an optional extra. Available as manual or with a pendant float switch, for automatic operation. SV-150(V)and SV-250(V) have a tube type float switch for narrow sump applications. SV pumps are not recommended for ponds or water features.