I put PFD fabric in my 5 gallon bucket to soak in soda ash/water. Then I get involved in making something else and although it only needed to soak for 30 minutes...well...you can figure out the end of THAT sentence!
Now to get right down to the total truth. I have often forgotten pieces for weeks...even months! Now I have a bunched up crusty of fabric with soad ash dried and crystallized all over it! NOW WHAT! Well, the first time this happened I decided to just dye it anyway to see what would happen if........ Low and behold! I ended up with a dyed piece of fabric with a very interesting texture! AND I loved it!. The soda ash had acted as a resist! Very organic and unpredictable (just like I like it!) I call this Serendipity Method of Dyeing (some call it forgetfulness or dementia but I prefer to view it in a more positive light!)
Here is the long-lost soaked fabric in the bucket. You can see the dried soda ash on the sides of the bucket and the fabric is just a stiff mess!