Certified Pool Operator Practice Test 2024 - Free Pool Operator Practice Questions and Study Guide

The acceptable pH reading range according to the Certified Pool - Spa Operator Handbook is 6.8 to 7.4. This is the recommended range because levels below 6.8 are too acidic and can corrode pool equipment, while levels above 7.4 are too basic and can cause scaling and reduce the effectiveness of chlorine. Options B, C, and D are all outside of the recommended pH range and may lead to potential issues with pool maintenance and water quality.