Do I need to "shake" the stock solution?

Fellipe de Paula · Sep 23, 2009

Do I need to "shake" the bottle containing the stock solution prior to use it?

Sirius Glass · Sep 23, 2009

Probably a good idea.

Steve

Ian Grant · Sep 23, 2009

Not always a good idea at all. If it's replenished that can stir up sediment from the bottom, usually bits of gelatin, colloidal silver (devs like D76, Xtol) etc.

I never have in 40+ years and don't intend to start now.

Ian

Fellipe de Paula · Sep 23, 2009

Just a little mix then?

BetterSense · Sep 23, 2009

I don't mix my D23 at all. I gently pick the bottle and pour off the top. If I'm too rough with the bottle it will stir up all the junk on the bottom and instead of nice clear developer, it will come out all brown and gunky.

Ian Grant · Sep 23, 2009

Fellipe de Paula said:
Just a little mix then?

The solution doesn't separate so nothings needed just pour out what you need

Ian

Sirius Glass · Sep 23, 2009

Of course if one had sediment in the bottle, one or two passes through a filter would take care of that. Which is probably not a bad idea to keep the little beasties off the film and paper.

Steve

Bosaiya · Sep 23, 2009

Rodinal can get nice and chunky. They're usually big enough that they fall to the bottom pretty quickly even if agitated. Some people strain it, but I like the swirling sound it makes, it's comforting.

Anon Ymous · Sep 23, 2009

Bosaiya said:
Rodinal can get nice and chunky. They're usually big enough that they fall to the bottom pretty quickly even if agitated. Some people strain it, but I like the swirling sound it makes, it's comforting.

I'm not sure, but some people say that straining it isn't a good thing to do. I don't and so far, nothing has changed. It works as it always did. Anyone care to elaborate?

Photo Engineer · Sep 23, 2009

Shaking any developer aerates it and tends to promote absorption of both oxygen and carbon dioxide. It is generally considered a bad idea to shake a bottle of developer. It is especially a bad idea to shake used developer. You want to avoid any solids that might have settled out.

PE

2F/2F · Sep 23, 2009

I always pour solutions in and out of the bottle using a filtered funnel. A lot of stuff gets trapped this way. I don't see why it would be bad practice, unless you are talking about filtering an entire batch over and over again, which would expose the stock to lots of oxygen. I just filter what I am about to use and what I have just used. If you don't have a filtered funnel, I hear you can use coffee filters, though I never have.

BetterSense · Sep 23, 2009

I tried the coffee filters once...cheap funnel-shaped Target brand ones. They were intolerably slow for filtering diluted rapid fixer.

Sirius Glass · Sep 23, 2009

BetterSense said:
I tried the coffee filters once...cheap funnel-shaped Target brand ones. They were intolerably slow for filtering diluted rapid fixer.

Ahhh but if it had been the regular fixer instead of rapid fixer, would the coffee filters been fast enough?? :confused:

Steve

Do I need to "shake" the stock solution?

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