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By trade I am a machinist. I have a small, one man machine shop at home, and I like to dive. Which means, I've made a lot of parts / stuff related to diving. BUT, it does not mean that I am an expert. You asked, and this is the way I do it, but does not "mean it's the only way". I have no...

As I understand your question, you want to clean your everyday mechanic tools for use when doing scuba equipment repair. Rightly so, you would not want to get axle grease onto any of your dive equipment. There are several options here: 1. Buy additional tools (chrome plated), an adequate...

This is a restoration project. I was given a JBL competition magnum speargun. It is in need of TLC. The guy I got it from knows that I - restore, rebuild, repair, so on and so forth just about anything (if it can be done). The first thing to tackle is the plastic guide for the shaft (on top...

This is a restoration project. I was given a JBL competition magnum speargun. It is in need of TLC. The guy I got it from knows that I - restore, rebuild, repair, so on and so forth just about anything (if it can be done). The first thing to tackle is the plastic guide for the shaft (on...

I believe the previous info (lung pumping) is going to be the culpret, or at least a large part of it. Its somewhat common for most divers to be a "little" overweight. I'm not talking about 10# or more, just a little extra to offset, or help offset a buoyancy problem. Next time you're at...

Overwieghting and, BC or Backplate & Wing (BP/W) lift capabilities. There is no pat, died-n-the-wool answer because of the many variables that have to be factored in. Sticking with BCs and leaving the BP/W out of the equation. Divers have had near fatal and fatal accidents due to being...

Hope this might be of help. Go to a swimming pool. If the LDS that you took your cert from has one, this would be the best place. Stop by and ask if it would be ok to use the pool for a bouyancy check. Show up with the same gear that you dive with, i.e., wet/dry suit, BC, etc...

Sorry, my error for not giving enough info. Up front thanks for the input. I am quite a bit behind, I left diving in the mid 70s and returned in early 00s (long story). I know there are a lot of product changes that have taken place, and feel that this board is the best source to get...

I was given two steel tanks, they are Gensis 100s, with a DIN only 7/8-14 thd tank valves. They passed hydro/visual. The issue, my gear is yoke style. I have searched to try and find valves of 7/8-14 thd that are yoke or yoke/din compatable (like the 3/4" ones, but in 7/8"). Hopefully...

By no means do I consider myself an authority on the subject. Our dive shop is a small mom/pop shop, I am a part timer about 1 or 2 regs a week, depending on the influx, sometimes nada for a spell. I have to agree with DA on the seat getting a double groove. That's a case for a possible...

For Oxyhacker: "What did that cost you? " Can't remember right off hand, think it was around $110.00 for both the BP & STA. They were from 1/8" SS. I could have bought them, but since I have AutoCAD, Lathe & BP Mill, etc. wanted to do my own. Any future changes were simple to do...

Can't say about a larger version than the eyeglass type. I've used these for awhile now, and they seem to "stick" well. I think my Rx for reading was 2.25, I currently have 2.50's in my mask. When I first started with them, and needed to remove and place in another mask, I had to use a...

Now that you've found em, if not look around the reading glasses displays. Over time, I've only seen them at Walgreens, but others may carry em, and most employes won't know what your talking about. So be a Paul Hogan, and do a walk about. Clean the inside of the lense. Lay out the...

ditto on kraken's comment: "The hose was threaded over the shards, and I can see them coming out of the port." .......or cross threaded, either way, the repair would be to drill out and re-thread to the next larger size. Could be done, but not sure if I would advise (even though I...

I hope I can accomplish this. Old dog, new trick sydrome. Searched the internet, found all I could find, some english some metric. A dive buddy has several back plates from name brand to no name brand. Borrowed em, and settled on the drawings attached ( i hope ). Sorry, getting some...

Option 1. use a vise (preferablly one with smooth jaws), invert 1st so nut is held by vise jaws, screw in a bolt (3/8", 7/16", 1/2" Fine Thread) into one of the ports, begin with a several lite palm taps, get heavier if needed. Option 2. if you have an old monkey wrench, works...

Hope this may be of some value. Walgreens (possibly others), eyeglass/vision correction display, look for "Stick-On" magnifying lenses. Small box about 3" x 4". They come in a variety of magnifications. Follow the instructions. Although they are no large, they really help with vision...

The local LDS is coming up with a dedicated nitrox compressor. I just finished making the motor mount for the compressor and its up and running. Now we need to look at downstream analyzing of the mixture. Being downstream obviously means high pressure (HP), thus needing to reduce the...

Hi: I am an avid reader more than a contributor, and now have run into a problem. Background: Certified tech - no, I help out the local LDS in reg maintenance. At home, I'm not interrupted with "I need........". Also, regardless of the reason they are in the shop, I completely...

In need of repainting tanks. (Aluminum and steel) Will sandblast to clean metal. Need recommendation on paint type. Should a primer be used??? Marine grade or epoxy, or what????? Totally in the dark on this. Thanks -- carl