Proper pH balance is an essential part of spa / hot tub maintenance. The recommended range is 7.2 to 7.6. If the the pH is high the water will be alkaline and the chlorine is prevented from doing its job since it "combines" with other materials in the water. The existence of this phenomenon is usually detected by a strong chlorine odour not found when the pH is in balance. The water tends to be cloudy and eye irritation may develop & scale build-up may also begin to occur.
