Baquacil to Chlorine - something wrong

[b2001]

Your question:

How will I know all of the baquacil is out?

and your previous statement:

i backwashed the sand filter and it was dark orange when it came out.

I had to continuously - 2 to 3 times a day - wash my cartridge filter and skimmer basket sock for about 2 or so days after my water cleared and I has holding the chlorine level overnight for my conversion. They both were still getting dark orange from baquacil. So it took a little longer for the residual baquacil to clear out. They both have cleared up nicely now - so give it a couple of more days for it to get filtered out unless your backwash is looking nice and clear now ...