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Just thought I’d share some ways to remove chloramines from your water without the need to buy and plumb a KDF dechlorination filter.

This High Times article goes over some of the methods, including using campden tablets, aquarium dechlorinator and Vitamin C to remove chloramines from tap water. According to the article, aquarium dechlorinator and campden tablets will raise your PPM by adding sulfur and sodium, while Vitamin C will only lower your PH.

This United States Department of Agriculture article goes over the pros and cons of two different forms of Vitamin C (ascorbic acid and sodium ascorbate) commonly used to dechlorinate water. Sodium ascorbate affects pH less than the ascorbic acid.

Using this calculator/spreadsheet, I’ve found that about 50 milligrams (0.05 grams) of ascorbic acid or 57 milligrams of sodium ascorbate is enough to treat one gallon of water with a chloramine concentration of 3.8 PPM which is what my areas water has tested at (anywhere from 0.09-3.8 PPM actually). The highest amount allowed federally is 4 PPM. You can search online for your local water report plug in your area’s concentration and see how much you ascorbic acid or sodium ascorbic would need.

The cheapest I found ascorbic acid is on Amazon. Sodium ascorbate is also available on Amazon. A kilogram of either of costs about $20. A kilo of ascorbic acid will treat 20,000 gallons and a kilo of sodium ascorbate will treat a little over 17,500 gallons. Ascorbic Acid can also be found at health food stores in the supplement isles in the form of 500 milligram or 1000 milligram Vitamin C tablets. Be sure to buy tablets which do not contain rose hips or any other extra ingredients. Each 1000mg tablet should be able to treat 20 gallons of tap water with a chloramine concentration of 3.8 PPM

According to this article and multiple, more scholarly and difficult-to-read sources (Google: humic acid dechlorination), you can also use humic acid to dechlorinate water. Could the humic acid in Recharge be why Scotty doesn’t see a difference between tap water and dechlorinated water when looking at Recharge under a microscope? If that is the case, then Recharge users and compost tea brewers who are incorporating humus in their compost tea can probably skip using KDF filters, aquarium dechlorinator and Vitamin C.

PS: I want to thank MO for making some comments in The Capn’s Nutrient Recipe about using Vitamin C tablets to reduce chloramines. This got me researching and was the inspiration for this post.