I'm going to try it and see if it does work. In the event you may not know, I googled Synthrapol and here is a definition that came up ~
Let me know if anyone has tried this and if it does work. It will be a lot less money!!
I would like to thank Sherrill for the link she shared with us in her comment. I looked at the article by Vicki Welch over at Field Trips in Fiber - Adventures in quilting, hand dyed fabric and fiber art and she recommends Dawn Pure Essentials as opposed to the blue Darn Ultra we usually see. Click on her link and you can see more!! Now I really have to try this!!