Quote Originally Posted by SchwinnParamount
Is it possible that a water stop bath is less effective in
stopping development at the edges of the film where it
is in contact with the reels?
My tap water is as alkaline as some developers I've used.

More often that is a problem of the developing process
and proper agitation. With a water stop, dilution of
the developer and ph reduction are very swift.

I've stopped using stops of any sort. Instead I use
very dilute unadulterated sodium or ammonium
thiosulfate. The two have a near neutral ph.