40 23 00 Water and Wastewater Process Piping
40 23 23 Potable Water Process Piping
40 23 13Deionized Water Process Piping40 23 16Distilled-Water Process Piping40 23 19Non-Potable Plant Water Process Piping40 23 23Potable Water Process Piping40 23 29Recirculated Water Process Piping40 23 33Reverse-Osmosis Water Process Piping40 23 40Sanitary Wastewater Process Piping40 23 41Grit Process Piping40 23 43Scum and Floatables Process Piping40 23 44Primary Sludge Process Piping40 23 46Waste Sludge Process Piping40 23 48Thickened Sludge Process Piping