You don't need dechlor. Bleach is off-gassed when it dries. It doesn't matter if you air dry or machine dry. I like to machine dry on low heat for 20 mins inside out and 20 mins right way out because it removes loose pieces of felt.

I only use vinegar to clean my aquarium stuff. The worst it could do is alter my pH slightly but after rinsing there is so little left all there isn't enough to do that. No soap, no bleach, just vinegar and fresh water. And there isn't much that vinegar can't disinfect or dissolve.

True but we don't have a dryer at the shop. Sometimes they don't have time to dry. I also feel safer using it.

I just power wash mine with my 1600 psi power washer from costco , I made up a holder out of stucco wire slip the sock over top blast away and u should see the stuff come out . When I am done it is not stone white but they are clean and ready to use or hang on line to dry it takes 10 minutes a bag but it just part of doing business

In your shoes I'd probably toss the socks, but that's me
Maybe a few washes in water only will remove all the soap residue, but that's your call

I used to bleach my socks and wash them a rediculous amount of times
I even did the prime in RO after thing

Now all I do is turn them inside out, rinse with a heavy stream in the laundry tub, wash in warm water on regular, turn right side out and stand on the plastic ring to dry
And I find they're just as clean as when I used bleach

I'm using 75% less water in the machine than I used to, using no bleach, and wasting neither prime nor RO