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All pics can be found here. Mixing whip and digital gauge and 4" analog gauge and a ripstop nylon bag to hold it all. This whip is a thing of beauty that I spent a while putting together. Has a plug on a QR so that you don't have to take out the expensive digital gauge on to the boat if you're...

Tanks All tanks are out of hydro but I will guarantee they pass. 1 set of AL80 doubles (Luxfers) with nice smooth valves: $300. 3 AL80 stages, some with proper stage rigging: $80 without rigging, $90 with 2 AL40 stage/deco bottles with proper stage rigging: $90 Also have a spare set of beefy...

$350 each. Out of hydro but I will guarantee them to pass. Located in Philadelphia, PA. Pictures available on request. Thanks.

All prices include shipping to continental US and PayPal fees. Magnehelic measuring -5 to +5 inches of water. Perfect for regulator repair. $30 6000 psi 4" gauge by VDO-OTA. $15 Huge number of plastic (and 2 brass) tank dustcaps. Great for shipping tanks or flying with them. Everything...

I dove this a few times in our local quarry (fresh water), but haven't used it as much as I thought I would. I just went to a micro 4/3 setup that will let me do video also, so I don't have a need for this any longer. It's in beautiful shape. Comes with a 32GB microSD card capable of keeping...

I have a Halcyon one-man life raft in like-new condition. Bought it for diving in off-shore conditions, and it's a great reassurance. However, I just got a Lifeline and decided to rely on that as my primary getting-lost protection, even though they serve somewhat different roles. If you're...

The Life, Death and Rebirth of the Mississippi Delta with Doug Jerolmack, Assistant Professor of Earth and Environmental Science, University of Pennsylvania 6 p.m., Mar. 13, 2011 Drinker's West, 39th and Chestnut Streets, Philadelphia, PA The Gulf Oil Spill and Hurricane Katrina are just the...

Over the last few months I've been occasionally asking divers I respect whether they do two dives per day. Most do (with conservative profiles), but a few try to avoid it. Then recently Tobin bravely put his story out there, and one of the commenters mentioned that every time he had been bent...

This post by Bob inspired me to ask a question that's been lingering for some time. In most locales, life gets scarcer when you go deeper. Yet deep diving has some rewards, biologically speaking. I've heard of the sponge belt in Cayman, and the PNW has its own fun stuff deep. Southern...

When planning a dive with a single deco bottle, when do you decide to plan on 50% vs. O2, and why? Assume standard gases and depths in the 100-130ft (30-40m) range. So far I've heard two reasons for the choice: - Change from bottom gas: If you're using 32% or 30/30, it doesn't make much sense...

I've got a DIY O2 sensor which works great, but I'd like to get a He and CO sensor in the lineup (ideally with one hookup so gas runs the circuit past all of them). Does anyone have DIY plans for either type of sensor? I have family members who are electrical engineers, so even a pointer...

This guy and I have had some great times together, but due to the recent unexpected arrival of deco in my life I need a computer that displays seconds in gauge mode. It's in good functional shape. Not like-new condition but not ugly either. And it's been super solid. I put a new battery in...

I don't do overheads, but even so find line work pretty useful (on boat dives with lots of metal around--so no compass--to find my way back to the anchor, for instance). I have a sense of the basic ties/wraps, and I'm somewhat competent at it but still often have a loop of line slip off and...

I have a DUI CLX450 and the booties are shot. I have purchased these booties: http://www.diverightinscuba.com/catalog/replacement-neoprene-booties-p-3098.html I have a heat gun for the removal, but I don't know what adhesive to use. Have a copy of the Airspeed Press drysuit repair book, but...

I have some 5th ports that I want to add to my regs. Anyone know what torque they're supposed to be tightened to? Thanks, Ari

I'm standardizing my regs so this has to go: ATX200 first stage. It's in great shape. I've been diving it and it works well, but as with any used reg you should get it serviced anyway. This is like the famed DS4 but a little smaller and with more of that 200 magic (e.g. this was...

I'm considering learning freediving because I think it would improve my in-water comfort on SCUBA and because I can't always drag a bunch of equipment with me around the world. There are risks to every sport, and SCUBA is certainly not as safe as sitting at home wrapped up in pillows, but on...

A recent post got me thinking about this. What skills/equipment taught in "DIR" are more easily peeled off from the rest, versus skills/equipment that fits better into a system? I'll start with some thoughts, trying to cover both dependencies on other skills/equipment and what it enables in...

Selling a grab box of stuff: -Elastic stage strap with pull tab -Scubapro SMB (no OPV) -Plastic toggle for pull dump -Three rubber valve knobs with metal inserts (does not fit DiveRite; likely fits Thermo/Halcyon/Blue Steel) -Large brass boltsnap, connected to stainless screw clip connected...