A friend of mine said that she read here that you can use acid to neutralize soda ash when dyeing and discharging on silk. I feel like a dunce, because I can't find this info in the FAQ, but Im pretty sure I'm just not seeing it! How is this done? In what proportions? I have a piece of 40% silk/60% cotton that came to me orange. I released it and it came out a perfect natural silk color. I dyed it but made an error on one of my colors and had to release again. One of my friends brought up concern for the fabric from all of the soda ash. Is this a valid concern?