Valterra Blue Devil 6-Way Pro OTO Test Kit | B7550

Valterra Blue Devil 6-Way Pro OTO Test Kit B7550 is a comprehensive water testing solution designed to accurately measure chlorine, bromine, pH, alkalinity, hardness, and cyanuric acid levels in pools and spas. This professional-grade kit uses OTO (orthotolidine) testing for quick and precise chlorine and bromine readings, ensuring balanced and properly sanitized water. The easy-to-use color-matching system provides clear results, making routine water maintenance simple and efficient. Packaged in a durable storage case, the Valterra Blue Devil 6-Way Pro Test Kit is an essential tool for maintaining crystal-clear, healthy pool and spa water.

• Comprehensive 6-Way Testing: Measures chlorine, bromine, pH, alkalinity, hardness, and cyanuric acid levels.
• Quick & Accurate OTO Testing: Provides precise chlorine and bromine readings for balanced water chemistry.
• Easy-to-Use Color Matching System: Ensures clear and reliable results for effortless pool maintenance.
• Durable Storage Case: Keeps testing components organized and protected for long-term use.
• Essential for Pool & Spa Care: Helps maintain crystal-clear, properly sanitized water with minimal effort.

• Fill the large test cell to line A with pool water.
• Add Cyanuric Acid test solution to line B, cap, and shake for 30 seconds.
• Wait 2–5 minutes, then pour into the C.A. view tube while looking down at the black dot.
• Stop pouring when the black dot disappears.
• Read the ppm level from the tube scale.

• Recommended Cyanuric Acid level: 30-70 ppm.