AquaChek Borate Test Strips Tests for: Borate Borate works as a buffer to help control pH, aid in algae prevention, and contribute to water clarity and a softer feel of the water. Use this test to make sure borate levels are in range. FIND AN AquaChek RETAILER Product Demos FAQ Product Information Recommended Products Product Information Borate: 0-80 ppm Bottle. Borate. Recommended Products AquaChekSilver