Never used citric acid. Is it dry granular or a liquid?
In Hungary 0,5 kg costs about 1 pound (or 1,5 USD) approximately. I bought it at a food store (as citric acid is used for food storage mainly), however, maybe if they label it as "beauty" product a 10x multiplier is applied...
Thanks for this; exactly what I see. Time for some citric acid and more distilled water. Very hard water where I live.If you live in a hard water area, the water will run out of the knot crystal clear. Once it has dried on the hair or bristles and you brush with you hand over the knot preferably in front of a dark background, you will see cloud of fine dust. This is chalk, carbonate salts, minerals that vary slightly depending on where you live. You can either rinse with distilled water or have to do an acid cleaning once in a while.