I have a question. Does anyone use water at their house from a water treatment system? Does the amount of minerals in the water have an effect on flash rust? I honestly don't know.
Tank tumbling process
- Thread starter BigRed96
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inka
Contributor
Are you actually VIPing your own tanks? Have any coursework or experience actually doing this?
1) There's no reason to smooth out pits - even if you realistically could
2) A pit with slopped walls is actually much harder to evaluate the depth vs. pits with near vertical walls which are a lot more similar to the pit gauge's vertical walls.
Are these exemption tanks or 3AA?
How deep are these pit(s) now?
Widespread, isolated or in a line?
inka
Contributor
Yes, VIPing my own tank, ( 15 Liters, 232 bar, ECS, steel tank, 2006)
Took SDI course in 2018,and VIS my tank with a SDI instructor. Last Hydro 2016.
I evaluate the pit depth about 0.005 or little more ( my pit gauge start at 0.010) and pits are isolated.
I bought this tank used, 8 years ago, no VIS, ( there was no VIS inspector for scuba tanks, just hydro testing) i open it, rust inside at the bottom, bought stainless steel wip brush during a trip to France, gauges for M25 threads and valve, cleaned it, passed hydro in 2016.There is not much person here who actualy can estimate a scuba tank, just hydro from an industrial gas company ( Messer)but they don´t do VIS for scuba tank, just hydro and fill it with air at partial pressure , not with a compressor.So basicaly, i am on my own .
Thanks
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