DIPSTIK Phosphate Test Kit for Pool,50 Strips Strip Quick and Accurate Swimming Hot Tub Spa Water Testing

Ideal phosphate level: phosphate content between 0 and 100 ppb, maintaining a very low phosphate content for clean and healthy water in swimming pools PHOSPHAT test strips: the water test strips are made of high-quality fiber paper and no color bleeding pads, can easily provide instant and reliable results SIMPLE, FAST AND ACCURATE - Place 5ml of water sample into the color measuring tube. 2. Place the tape into the color measuring tube, close the lid and turn it over twice for 10 seconds. 3. Wait 2 minutes, then remove the test strip. 4. Follow the instructions to compare the colour chart Versatile polyphosphate test kit: the phosphate water test kit contains 50 polyphosphate test strips and 1 test tube with cover for swimming pools, hot tubs FOR BEST RESULTS: Keep your hands dry before removing the strips, read under natural light, keep wet fingers away from the bottle and store the test strips in a cool, dry place. Test strips are not reusable