Marley Plumbing and Drainage has further expanded its extensive product portfolio, with the introduction of a new acoustic soil and waste system, Marley dBlue. <br> <br> As well as providing quick, hygienic removal of sanitary waste water, the triple layered pipe dramatically reduces the noise generated by the flow of water – making it perfect for multi-occupancy apartment blocks and high specification developments. <br> <br> The result of extensive research and development, the system effectively reduces both airborne and structural acoustic vibrations to a level of 19dB. Within the pipework, the layered construction absorbs sound waves and reflects them inwards, significantly reducing the transmission of noise to the system’s surroundings, while a pipe clamp limits acoustic vibrations passing into the building’s structure.<br> <br>