Profile: Butler Manufacturing Services Ltd. designs and manufactures waste water treatment products. We are an ISO 9001:2008 certified company. Our products include sewage treatment products, grease traps, oil & petrol interceptors, sewage pumps, attenuation/surface water products, rain harvesters, silt traps, and car wash water recycling. Our sand filter is a compact duty/standby filter system specifically designed for the tertiary treatment of effluent discharges from sewage treatment plants. We also manufacture GRP pre-assembled valve chambers containing non-return valves, sluice valves, and all necessary connections. We also provide operation and maintenance services.