The best discount code for AlkalineWaterPlus.com is CLEARANCE-SALE-30, which offers a 30% discount. Other notable codes include SALE10&91 for 10% off select items, ORP-20 for 20% off select items, SALE15 for 15% off Nexus X Blue Water Ionizer, EARLY-SAVINGS for 22% off water ionizers, GAVE-GOOGLE-REVIEW for 10% off storewide, and SPRING-SAVINGS for 20% off AlkaViva H2 water ionizers. Please note that the availability of these codes may vary and it's recommended to check the website for the most current offers.