dirty pH wand

[jadeguppy]

How long should I soak it in vinegar to get the coraline off the bulb?

 

[kar93]

just scrub it off with water and vinegar.

 

[jadeguppy]

scrub the bulb? Won't it break?

 

[kar93]

just use a toothbrush or something.

 

[jadeguppy]

OK. So far the pH has raised about .4 while soaking. I think I may have found my problem.