Re: [APML] Help with M8 on Tech Pan

[Chuck Vaughn <aa6g@aa6g.org>]

Thom,

Get rid of your metal tank and get a plastic one. Inversion with D19 or 
HC-110 will cause uneven development. Curiously, you MUST invert with 
Technidol. Make one to two gentle turns of the reel every 30 seconds, 
no more. I guarantee your uneven development will go away, along with 
the sprocket bleed unless the sprocket bleed is  caused by moisture 
which is a separate problem.)

There's at least two other threads on this in the archives so before 
anyone tries to tell me that inversion with D19 works for them, save 
your time, I'm sticking to my guns on this. I have absolute proof that 
inversion causes uneven TP development. I have solved several people's 
development problems by getting them to switch to a plastic 
non-inverting tank.

BTW, tapping the tank is overrated and with a plastic tank you only 
need to do it once anyway.

Chuck <aa6@aa6g.org>

-----------------------------------

> Thanks Jerry, why is it the answer that makes the most sense is always
> the one you don't want to hear.  Arrrgggg....
>
> Short of the humidity concerns, hand processing is probably the thing
> that has the most inconsistency to it for me.  I mix and control
> temperature like it is a religion and try to do the same with the
> agitation but you can't compare hand agitation with drum processing. 
> The
> drill for me is to:
> 1) pour
> 2) twist 3-4 times
> 3) tap
> 4) invert once (about one second over and one second back up)
> 5) invert once every minute thereafter (same speed as above)
>
> What do you recommend I try differently?  Invert less often or more
> slowly? Forget the twists?
> BTW, development was 12 minutes, HC-110 dilution B @ 68 F.
>
> Thanks again,
>
> Thom Iwancio
> Elgin, SC
> www.machunter.org
> home.sc.rr.com/thomiwancio

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