Reference-kit for Pool Lab vial each with pre-colored (hard) solution to check: chlorine pH cyanuric acid alkalinity Plus ZERO vial.
1. This set of standards is intended to check the accuracy of your poolab if you have doubts, as statistics show the device is accurate just people do not always use it correctly.(for reference, in five years 200,000 PoolLabs have been sold, all of them are still in operation - Percentage of defect 0.002%)
2. Read the testimonials on our PoolWaterLab website, where customers tell us what they did wrong and their experience at the end.
3. Contact our support team by chat or mail.
4. If you want to verify the accuracy of the device yourself, you can order a set of standards here