40 23 00 Water and Wastewater Process Piping
40 23 41 Grit Process Piping
40 23 13 Deionized Water Process Piping 40 23 16 Distilled-Water Process Piping 40 23 19 Non-Potable Plant Water Process Piping 40 23 23 Potable Water Process Piping 40 23 29 Recirculated Water Process Piping 40 23 33 Reverse-Osmosis Water Process Piping 40 23 40 Sanitary Wastewater Process Piping 40 23 41 Grit Process Piping 40 23 43 Scum and Floatables Process Piping 40 23 44 Primary Sludge Process Piping 40 23 46 Waste Sludge Process Piping 40 23 48 Thickened Sludge Process Piping