{"id":1499,"date":"2022-01-13T17:54:49","date_gmt":"2022-01-13T17:54:49","guid":{"rendered":"https:\/\/hottubzone.com\/?p=1499"},"modified":"2023-02-06T18:53:17","modified_gmt":"2023-02-06T18:53:17","slug":"how-to-lower-alkalinity-hot-tub","status":"publish","type":"post","link":"https:\/\/hottubzone.com\/how-to-lower-alkalinity-hot-tub\/","title":{"rendered":"How to Lower Alkalinity in a Hot Tub (Step-by-Step Guide)"},"content":{"rendered":"\n
Keeping alkalinity levels within the correct range is vitally important for the safe running of your hot tub and its components. So how do you lower the alkalinity?<\/p>\n\n\n\n
In order to lower the alkalinity of hot tub water, you’ll need to add acid. The most practical and safe choice is sodium bisulfate, which is sold as alkalinity decreaser. An alternative way to lower alkalinity is to use muriatic acid. Alkalinity cannot be lowered naturally without the use of chemicals.<\/strong><\/p>\n\n\n\n In this article, I show you:<\/p>\n\n\n\n Make sure you know the capacity of your hot tub before making adjustments to the total alkalinity (TA) so that you can accurately calculate the dosage. The ideal range for total alkalinity is between 80-150 parts per million (ppm).<\/p>\n\n\n\n The easiest way to lower alkalinity levels in a hot tub is by using sodium bisulfate, which is sold as Alkalinity Decreaser. Sodium bisulfate is a dry acid in granular form that’s user-friendly.<\/p>\n\n\n\n Despite being safer than liquid acid, caution still needs to be exercised when handling any type of acid by wearing protective gear.<\/p>\n\n\n\n Note:<\/strong> As well as lowering alkalinity, sodium bisulfate also lowers pH, which is why it’s also sold as pH Decreaser. There’s no need to buy both Alkalinity Decreaser and pH Decreaser because they’re the same thing.<\/p>\n\n\n\n <\/p>\n\n\n\n <\/p>\n\n\n\n When sodium bisulfate is added to water, it increases the hydrogen concentration, lowering both the total alkalinity and the pH. The exact amount of sodium bisulfate your spa needs will differ each time you have to lower alkalinity levels.<\/p>\n\n\n\n As a general rule, you’ll need to use 1\/3-ounce (9.4g) of sodium bisulfate per 100 gallons (380 liters) of spa water. A 1\/3-ounce of sodium bisulfate in 100 gallons will lower alkalinity by approximately 10 ppm. Keep in mind that sodium bisulfate will also lower the pH levels.<\/p>\n\n\n\n\n
Two ways to lower alkalinity in a hot tub<\/h2>\n\n\n\n
How to lower alkalinity using sodium bisulfate<\/h3>\n\n\n\n
What you\u2019ll need:<\/h4>\n\n\n\n
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How to lower alkalinity using sodium bisulfate<\/h4>\n\n\n\n
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