Devided Developers

[mrred]

What PH do I need to keep the A bath to stop metol or phenidone from activity with or without ascorbic acid?

 

[Gerald C Koch]

A pH of 5.5 to 6.0 should be alright.

 

[mrred]

If I am using metol and sodium metabisulphite or sodium bisulphite to lower the ph, would I still need some sodium sulphite as a preservative?

 

[Rudeofus]

If I am using metol and sodium metabisulphite or sodium bisulphite to lower the ph, would I still need some sodium sulphite as a preservative?

No.

 

[mrred]

Thanks for the replies folks, short and sweet like I like them!