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i recently acquired a steel tank with the following markings: KHR 22755 AIR 10 - 85. TP335 FP200. V 12.1 W14.9 It's 7" in diameter and 24" from the base to the top of the neck. I've ascertained that it's a 12.1L tank from Oct. 1985, serial number 22755, working pressure of 200 BAR and...

I recently acquired a set of 109s that I initially thought were lacking its labels based on the posted photos: (photo from Rob S.) While waiting for them to arrive, I decided to have some labels made to replace the missing labels and vacillated between just a basic "S" or something else. I...

I recently got a batch of regs and one of them was this balanced flow through reg: The knob says Sportsways Waterlung, but in my literary search, I the only reference I could find to a balanced flow through LP port reg by Waterlung was the X2-1200 from 1982. I wanted to confirm if this was...

This is also cross-posted on CPF. CONSTRUCTION: First impressions: Seemed relatively well built - nice and solid. On removing the head, there were one or two swarfs, but otherwise it looked great. The fins on the head are not overly-done as seen on some other dive-lights out there. The...

In line with the thread in the regulator forum asking "how many regs..." I thought of the tank discussion for something that not all divers would have. When I started out looking for tanks, people would always ask me "what for?" considering that resorts would lend out their tanks. I dunno...

Ok, I'll admit that I've been lurking around here for the past few weeks. I guess vintage equipment diving has always been on my radar. Curiosity was further piqued when I bought a copy of Hank and Shaney Frey's book Diver Below. Later on, I acquired two Dacor LP72s which I currently use for...

Okay, I did a search here looking for "Vintage Double Hose" and only came up with three hits, none pertaining to what I want to know. In some of the shops here in Manila, I noticed displays of vintage regs - specifically double hose regs. Now, a few months ago, my brother in law spotted one...

This is an off-shoot of a thread regarding the pressure of CO2 in a can of soda. This topic was brought up, and just to test it, here are my results: Take a tomato (yes, it's a fruit - not a vegetable): Take a desktop pressure pot: Place tomato in pot and pressurize along with depth...

In a recent lot of vintage equipment that I purchased, one of the more interesting finds was a Sportsways combination capillary depth gauge and SPG marked in both PSI and kg/cm. Now, the lot came with a 1977 (?) Sportsways Waterlung W-600 Hydronaut (see other thread) as well as a vintage...

I was looking through local classifieds site and came across one of these regs in a lot of vintage regs for sale. I cannot discern any markings on it that would help me identify this particular reg: Any help would be welcome. thanks!

Quick question: What would happen if you cleaned a dive computer or a watch with a depth gauge in an ultrasonic cleaner? Would the sensor be damaged? I just got a Citizen Promaster Aqualand, and there are no recommendations against ultrasonic cleaning in my watch manual. Only to stay...

Got another Al80 to make my second set of doubles. There's a bit of oxide on the wall of the inside, but I'm too lazy to jerry rig a whip right now (not too much oxide to make it really worth my while). Will it be okay to just leave a very dilute solution in the tank to get rid of the oxide?

I'm looking for a quick and dirty alternative to building my own pressure pot. The ones listed in the DIY section call for cutting old tanks, or using PVC. As an alternative, I was thinking of using something somewhat almost ready to be used: An old water jug. It has a wide mouth...

So, we've all read the threads talking about using doubles wings for singles and vice versa. All the discussions about drag etc... In the threads I've read, a wing is supposed to: 1. Float the gear on the surface 2. compensate for the loss of exposure protection buoyancy at the heaviest...

First of all, I've always been a diaphragm reg kinda guy... that is, until now. Few days ago I purchased 2 unbalanced generic piston regs, just to get their din wheels to use on my main regs (DIN assemblies were around 70 dollars, the regs were just around 67...). my LDS had them on...

In previous threads, some people stated that SP used a common DIN kit. The trident catalog makes a distinction between "old" SP regs and "newer" SP regs, but it failed to indicate which regs they were. Can a mk17 DIN kit fit a mk25? And here's a doozy of a question: Can the DIN kit for a...

I recently tried my twin LP72 tanks in OW. For my single tank diving previously, I had been using large jet fins. No problem with them, fits great, good power. Now when I tried them out with my dubs, I was still able to move forward, but I was having a hard time keeping up with my buddy...

Hi everyone, I'm currently in the process of setting up my twins. Going to have custom bands made because most of the bands available here only al80s (my tanks are lp72s). Before I measure up and have my bands made, I started thinking about attachments. When a set is bolted to a plate...

Earlier this week, I purchased 2 vintage Dacor LP72s. I posted in the basic scuba discussion forum about using steels in tropical seas, and this is the offshoot of that thread... I bought the tanks based on some grainy photos from the web. After getting them, both tanks are in relatively...

There's someone around here selling 2 72cf steel tanks for just about the equivalent of $100 for both. I'm thinking of getting them to complete a set of banded doubles. Will the negative buoyancy be too much? How about for single tank use if dubs will be too negative. Here's the other...