Bought a mk25 first stage off of eBay and it looked brand new well I got it and it has some green hard buildup in spots on the exterior, any tricks to get it off? And I am getting it serviced by my dealer next week.
Corrosion on first stage
- Thread starter Jxh2297
- Start date
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blackvans1234
Contributor
you could try to put it in some water and scrub it off. But I dont really know. My tanks 1st stage developed some corrosion and I rubbed it right off (wasnt easy though)
Paladin
Contributor
Soak it for a few minutes in white vinegar, then wash it in hot, soapy water and rinse.
R
redacted
Guest
If you are going to have it serviced, the tech should take care of it. Inside is a bit more concern and it is probably not something you want to deal with unless you are ready to cross over to the dark side.
DevonDiver
N/A
As awap said, it should come back clean from the service.
Otherwise, seal it up and give it a long soak in a diluted vinegar solution. Then give it a scrub (non-abrasive pad) with Simple Green. Finally, soak in clean water.
Otherwise, seal it up and give it a long soak in a diluted vinegar solution. Then give it a scrub (non-abrasive pad) with Simple Green. Finally, soak in clean water.
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White vinegar in a sonic clearer (if you have access to one) is great.
OP
The vinegar bath got slot of it off, thanks. Going to leave the rest up to the dealer
R
redacted
Guest
Make sure you tell the dealer what you did. Service of a Scubapro reg does not usually only replaces all of the o-ring. Unfortunately, some o-rings may be degraded by an acid soak so yours may be better off with all o-rings replaced. Long acid baths are also liable to attack the chrome finish which can cause sealing problems due to flaking chrome.
After the vinegar bath, a dunk for a few minutes in water with baking soda is a good idea to neutralize the acid. Then the final rinse.
I do want to point out that the verdigris will most likely return intermittently. You could try clear nail polish or a dielectric compound to slow/prevent it. I think Tribolube makes one called EPO2, but I've never tried it. However, mild verdigris is really not that big of a bother on the external surfaces.
I do want to point out that the verdigris will most likely return intermittently. You could try clear nail polish or a dielectric compound to slow/prevent it. I think Tribolube makes one called EPO2, but I've never tried it. However, mild verdigris is really not that big of a bother on the external surfaces.
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