Aquarium bubbler for my AP

[Ellias]

H3llo folks! I just installed an aquarium air pump onto my AP solution. But my solution looks very dark brown/black. Does it still work, do i revive it somehow - any advice?

 

[Martijn]

H3llo folks! I just installed an aquarium air pump onto my AP solution. But my solution looks very dark brown/black. Does it still work, do i revive it somehow - any advice?

If it does not clear up and turn green with the air in a couple of days, add a bit HCl to convert the copper 1 chloride in copper 2 chloride.
Be sure to place the air pump above the jar to prevent a siphon effect if the pump fails.