ENH 424 Study Guide - Final Guide: Survey Methodology, Diatomaceous Earth, Calcium Chloride

• School: Ryerson University
• Department: Environmental Health
• Course: ENH 424
• Professor: Marilyn Lee

Document Summary

(cid:3042)(cid:3047)(cid:3039) (cid:3049)(cid:3042)(cid:3039)(cid:3048)(cid:3040)(cid:3032) (cid:3042)(cid:3033) (cid:3050)(cid:3047)(cid:3032) (cid:3047) (cid:3042)(cid:3048)(cid:3034) (cid:3033)(cid:3039)(cid:3047)(cid:3032) (cid:4666)(cid:4667: water clarity requirements. Short answer questions (worth 4 marks each: pool flow rate calculation. Minimum number of times the volume of pool water passes through the filter in 24 hours. Rate at which water is filtered disinfected, returned to pool each day (turnover rate) Min 4 times a day for class a pools and 3 times a day for class b pools. Black disc required in all pools (both class a and class b) in ontario. Black disc must be 150mm or larger in diameter on a white circle at deepest point of pool. Black disc must be visible from 9m away. Pool to be closed immediately if it is not visible. Spa water must be clear enough to see lowest drain cover, close it if it cannot be seen: water balance/saturation index.