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Food grade silicones "shouldn't" be able to harm silicone rubber diving masks. It sounds more like there is an impurity involved, specific to the gunk that was used, or that perhaps the "silicone" in the mask is faulty. Leaping to the "obvious" conclusions requires ignoring the huge amounts of...

FWIW, dishwasher detergents are usually a fairly alkaline and harsh cleaner, but a number of them try to include a "spot free" to reduce water spots. That used to mean a separate "Jet Dry" or other liquid dispenser, but even if you're sure you don't have that, sometimes the detergent itself is...

I suppose...One should mention the Mr. Clean Magic Eraser. It is actually a piece of foamed melamine plastic (the stuff they make unbreakable plastic dishes out of) and effectively about a 3000-grit abrasive. The trick is, it is very carefully "foamed" and the foam breaks down as you use it...

It costs money to burn more fuel to refresh the cabin air on aircraft. So they recirculate it, heavily, and that recirculates any bug that any passenger has. Airplane flu, about the only thing that might actually help is wearing a breathing mask--and that'll get you the stink-eye pretty fast...

Battery transport rules are constantly changing. Folks don't understand the difference between "lithium" batteries and "lithium metal" batteries. Or, that batteries installed IN A DEVICE are regulated differently from the same batteries shipped on their own. One day a gate agent told me "You...

https://smile.amazon.com/Ubestyle-Lycra-Sports-Skins-Swimsuit/dp/B0773J4PBS/ref=sr_1_6?keywords=scuba+rash+guard&qid=1552947194&s=gateway&sr=8-6 More like $25 and others are slightly higher, but a proper rash guard is going to give you more protection, and it won't bog you down the way that...

OK, now you folks are making me paranoid. Or maybe I should say "wary". If I'm going to rashly assume a rental tank is what it is supposed to be...or maybe, I should be carrying a monoxide and co2 tester to use all the time, not just a nitrox check? Like the lady at the airline ticket counter...

Jiminy- Back in the 80's, as Corning Ware and acrylic bathtub surrounds were becoming popular and getting destroyed by Ajax and Comet...they all reformulated to become more like BonAmi. BonAmi was always based on diatomaceous earth ("fuller's earth") the same powdered white mineral that most...

Seeing this late, but. KEVLAR GLOVES. Used to be damned hard to find, but you can find them in any hardware store these days, or online, for about $5 the pair. They look like a dirty yellow version of the standard brown gardening gloves, and they're commonly sold for "trash handling" because...

Some guys carry backup masks and snorkels on every dive. And take the mask into the water with them. Whatever floats your boat. If I was doing the kind of diving that really REQUIRED a computer, like a three day weekend or a vacation that was going to be full of NDL or solo dives where the...

You can't really "test" anything, if you're not putting it under real use conditions. So from that point of view, the only way to test gear for a 100' dive, is to get in the water with it. At 100'. But what I suspect most of us would do, is take the gear--all of it--on a pool dive or similar...

Actually it was the Canadians using "Imperial". Yeah, we all look alike. First time I took a long drive through Canada I couldn't figure out why I was getting such extremely high gas mileage...Imperial gallons can do that to you.(G) And while Canada is supposed to be all nice and metric...

Caruso- "Also not all peroxide systems use a catalytic disc to neutralize the solution." Really? I'm only aware of two brand names (ignoring the chain store copies of them) that are on the market, and both use a catalyst disk. What system(s) are you talking about? I don't and didn't say...

I'm with Bob on this. Abdominal pain is not generally a symptom caused by SCUBA gear malfunction of any kind. Years ago, the eponymous Harvey of Harvey's Scuba (Sheepshead Bay, NY) died in a "diving" accident. Except, it was eventually found out that he'd died of a heart problem *while* diving...

I would suggest that the risk of infection from seawater can be kept to zero, if you simply use a peroxide disinfectant instead of the precious chemical ones. Chemical disinfectants have to be somewhat weak, since you take the lenses out of the solution and drop them into your eyes, taking some...

Kudos on the policy, Mako. Sounds like a win-win situation for all.

Dunno, tendi. DDM and the DAN phone staff usually are in agreement, but here they seem split. What patients, especially patients coming in through the ER and in distress, seem to forget is that they always have the right to decline treatment, and the right to be fully informed of what is being...

Sometimes I wonder about the use of IV fluids. And then I remember, the IV saline bag costs $1 per liter, the hospitals usually charge $100 for that same bag--plus labor fees. If the rash initially went away, that would tend to indicate the oxygen did the trick, no? Do skin bends "come and go"...

A nitrox sticker just means "We're too cheap to use premix, so we want you to have oxygen-cleaned tanks so we can hot shot your tanks." Yeah, it is that simple, For most shops having 32 and 36 on hand, or just having 32 on hand, would be enough. Worry about oxygen cleaned tanks only if you're...

Bob, I want the name and address of that shop. I'm going to get my fills there. (G) Serisouly, they deserve kudos for being perhaps the first and only honest shop I've ever heard of. Or perhaps, this was before the days of "Our insurance/trade group/tooth fairy requires this."