Plumbing Africa July 2017 | Page 63

BLOCKWORD 61 Blockword Test your general knowledge of various plumbing aspects. 2 1 3 4 5 6 7 8 9 10 ACROSS 5. Loss of fluid usually due to mechanical breakdown or gasket wear. 6. In a pump, the part that holds one-half of the mechanical seal and attaches to the stuffing box. 8. A sealed tank where water is turned to steam for heating or power. 9. The turbulent mixing of water and air to dissipate pollutants into the air. 10. A process involving chemical change caused by the passage of an electric current through a liquid. DOWN 1. Any part of a drain system other than the main, riser, or stack. 2. Measurement of 100 000 BTUs. 3. The amount of dissolved minerals in water measured in grains per gallon. 4. Access opening to a hole, usually with a cover, through which a person may enter a sewer or drain. 7. Usually a brass casting that holds both the hot and cold valves and the mixing chamber for the water. * Go to page 71 for the answers. PA www.plumbingafrica.co.za July 2017 Volume 23 I Number 5