Corrosion on threads?

[redacted]

But does that look like threads from a reg that was serviced less than 12 dives ago- all in fresh water?

I would conclude from that pic that those threads were recently lubed and that likely occurred during a service. But the service was not well done.

 

[pepperbelly]

I bought the regs in June 2015. What do you consider recent?

 

[redacted]

I bought the regs in June 2015. What do you consider recent?

Within a year of your purchase. Maybe even 2 years if inspection is good.

 

[pepperbelly]

The shop I took them to for service ladt werk said it was corrosion. People here just looking at tje pics think it's salt deposits.
Either way there is no way they were disassembled, cleaned and serviced prior to me picking them up. I have less than a dozen dives with them all in fresh water.