Plumbing Africa February 2019 | Page 65

BLOCKWORD 63 Blockword Test your knowledge on plumbing and business-related terms. 1 2 4 3 5 6 7 ACROSS 2 Vertical main that reaches multiple storeys; the main resides in the drain, waste, and vent system. 4 Rubber-headed instrument that creates suction in a drain line or toilet and pushes a clog through the line. 5 Liquid waste from a septic system. 7 A curve in a drain line preventing odours from escaping into the atmosphere. DOWN 1 A fitting that allows for different pipe types to unite. 2 A pipe that runs through a wall to allow another pipe through it. 3 The process of draining a pipe, tube, or hose of excess air. 6 Paste that assists with the fusion of copper pipes and fittings before soldering. Go to page 65 for the answers. www.plumbingafrica.co.za February 2019 Volume 24 I Number 12