Back to all questionsPool Questions - AlkalinityFind Questions By CategoryAlkalinityChlorineCloudy-murky waterDealing with Animals in the PoolGeneralGreen Water and AlgaeInflatable PoolsMetal Contaminants and Metal Ionizer DisinfectantspHPumps, Filers, and VacuumsSafety and HealthSalt PoolsStainsWinterizing and Solar Blankets When I test my pool with a test strip the alkalinity shows a dark green color is that high or low that color isn’t on the box. Categories: Alkalinity My test strip shows green color for alkalinity is that high or low. Reading there is no indicator for that color. Categories: Alkalinity