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How to Raise Your Hot Tub Alkalinity
How to Raise Your Hot Tub Alkalinity
Written by Kimberly Giraldo
Updated over a week ago

Low alkalinity is the more serious of the two extremes. It can cause rapid fluctuations in pH, because the water can’t as easily counteract the effects of acids, like acid rain or naturally occurring minerals. Such an environment has a cascade of effects on your hot tub’s appearance: it can damage and erode its surfaces, while also corroding metal parts, a perfect storm can result in unsightly stains. Low-alkaline water also won’t be able to balance the amount of phosphates, which feed algae, resulting in water that is green.


What you’ll need

  • Test Strips

  • Jacuzzi® Alkalinity UP

  • Measuring cup with ounces


  • Submerge the test strip six inches below the water line

  • Check your Alkalinity water results

  • The Alkalinity desired range is between 80 and 120 ppm

  • Turn on air blower or filter system

  • To raise your Alkalinity, utilize Jacuzzi Alkalinity Up, one ounce per 400 gallons of water

  • Allow the water to circulate for 30 minutes

  • Retest and repeat the previous steps if needed

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