divinginn
Contributor
taking them to another shop $65 out the door,I am good with that;
I about dropped a load in my shorts on the 150+ price.
I about dropped a load in my shorts on the 150+ price.
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A hydro involves filling the tanks with water. You need to vip them after that.About $45/tank, with or without fill depending on who is doing what. If it is another 46 for the fill..OK, $51 easily.
Now here's the rip-off: Every dive shop will tell you that you need a hydro AND a VIP, right? Wrong. A DOT-certified hydro test cannot be performed until AFTER the technician does a VIP of the tank.
So that VIP of a freshly hydro'd tank? Is a totally redundant rip-off. When the shop tells you "Well yeah but they don't know how to do a SCUBA VIP" ask them if they're saying the hydro shop is incompetent, and in that case, why they still use them.
And yes, actually the DOT has said they are open to public requests for revising their regulations on SCUBA tanks which are (paraphrasing) gee, somewhat arcane and dated by now. Which is not to say VIPs in SCUBA shops don't differ radically, depending on who is doing them too.
You need to vip them after that.
Why? They do a VIP before they hydro. If they think a tank is bad they won't even test it.
The VIP is a scuba tax. It's a way for a shop to make money... that's it.
I'm with @Eric Sedletzky.. I pay for hydro but do my own everything else.
I would think for when they fill the tank with water and don't dry it quick enough and it's got rust that needs to be tumbled out before it can be filled with o2 or partial pressure blended into.
I wouldn't say tumbled... either whipped or chemically removed (which is what I do as others on this board have taught).
I only very recently became VIP certified so I could be wrong, but I've been o2 cleaning and vip'ing tanks when I get them back from the hydro shop. This also seems to be consistent with what other DIY'ers I know are doing as well.
Sometimes all they have is a slight light brownish stain after hydro and to many this is perfectly fine me included. As long as it’s not brown and no loose scale. Some people insist on them being absolutely bright shiny and spotless, this is OK too. I can be that way sometimes. I know that my standards are higher than my LDS because I took some of my tanks in for fills after they were hydroed and I used my special cleaning tools on them. I told the shop that I just got through giving the inside a quick once over since I didn’t want any staining in this one. The shop looked at me and said “C’mon, did you really look inside and clean it”? I said “pop the valve off and look inside”, so they did and they’re response was “Holy sh_t! we’ve never seen tanks that look that nice inside!”.I would think for the case where the hydro facility fills the tank with water and then fails to dry it quickly enough, so it's got rust that needs to be tumbled out before it can be filled with o2 or partial pressure blended into.