Ilford ID-1

Pyro film developer

Part A
Water750ml
Potassium Metabisulfite24g
Pyro100g
Cold water to make1000ml
Part B
Part A solution50ml
Cold water to make500ml
Part C
Water 125F/52C250ml
Sodium Carbonate (monohydrate*)21.6g
Sodium Sulfite (anhydrous)25g
Potassium Bromide (10% solution)6ml
Cold water to make500ml
Mixing Instructions: Add chemicals in specified sequence. The 10% solution of potassium bromide can be made by dissolving 10 g of potassium bromide in 1000 ml of water.
Dilution: Mix 1 part B with 1 part C for tray use. For tank use mix 1 part A with 5 parts C + 20 parts water.
Usage: Starting point dev time: 5-10 mins.

Notes 

*multiply amount by 0.833 if using Sodium Carbonate in anhydrous form.