More wastwater works 09/05/2024 FacebookTwitterEmail As part of relining pipes, a strip of PVC is fed into a machine from an above ground spool and is wound by locking the edges together to form a continuous helix. Photo: Supplied. WHYALLA - More than 2.7 kilometres of sewer mains works is expected to ensure reliable wastewater services across the city. […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password