I use hypo clear. It uses less water, it's less wasteful, I can get my negatives dry faster (since I will finish washing earlier). And most of all, it gets the stain out of Kodak films. I do not like to over fixate my films, since I already fix them for 6min in rapid fixer.
I use 2x for traditional film (Plus-X) and 3x for T-grain film (TMY)
“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2
i don't use hypo clear but perma wash ( similar but a little different )
i fix 2x in separate fix baths for recommended times
rinse film ( and paper ) for recommended time
then into the perma wash for recommended time
then wash out perma wash for recommended time ( sometimes 2x that time if i am paranoid )
i think for film it is something like 2 mins rinse, 2min perma, then 2min wash,
double weight paper 5 mins wash &c
single weight paper, half that ..
since i can't remember, i consult the package ( not all brands are the same ) .
the hypo clear is a substance ( sodium sulfate ? ) that grabs free floating fixer/hypo molecules off of your film / paper / water
and helps you clear your film /paper/ stuff of these molecules that are just hanging out, not doing anything.
( it is based on the us navy's using sea water to reduce wash times in ww2, similar stuff )
just do what the package of your hypo clear says to do and you won't have troubles and it will reduce your wash times.
For those of you that use hypo-clear with film, how much water do actually you use per film. I use the Ilford method which means 4 tanks of water per film; 3 for washing and 1 for photo flo. For a 120 film that's 4 x 500 ml = 2 liter, for a 135 film it's 4 x 300 ml = 1.2 liter. I always thought that with film and RC paper it wasn't worth the hassle to use hypo-clear and dumping an extra chemical down the drain. So I'm just wondering how much water savings we're talking about. I'm all for water and energy conservation, that's not the issue.