pressure

I recently acquired an oil filled cylinder pressure check gauge so this on is no longer needed. It is from Dive Gear Express (DGX) and currently sells for $48 and I am letting this one go for $30 shipped to a continental USA address. It is less than a year old and is in perfect condition...

Hi, I've recently been given a pair of Poseidon regulators, one is a seperate first stage, the other a complete unit with a Cyclon second stage, SPG, schrader LP inflator hose and backup second stage. The regulator that's a complete kit was set to an IP of 13.5 bar. I have readjusted it to...

They work great and haven't been used on many dives. Screen protectors are installed on them.

Hi all I am a recreational cold water diver looking to extend my bottom time (I dont need comments to improve SAC, etc..). I have mostly used AL80's, and have used LP steel on ocasion. I am thinking about getting an HP100 steel tank. Is there a reason people choose LP tanks over HP (besides...

All my dives were with AL80 tanks. During various dives I noticed that initial pressure of tank really varies from 180 bar to 210 bar and wanted to ask you what is maximum bar such tanks could hold and what psi I should expect when I receive freshly filled in tank. Somehow I thought that dive...

I've been trying to find a specific explanation for what is special about a "Submersible" mechanical pressure gauge vs a normal land-based pressure gauge, and I haven't found anything sufficiently detailed yet. I believe for a standard surface pressure gauge, the casing is basically...

I have a Genesis Oz regulator connected to a Scubapro Air 2. The Air 2 recently started free flowing so I thought that was the problem and had it serviced. Get it back connect it to my reg and it still free flows. Connect it to another reg and it works fine. Had the local dive shop check the...

Hi everyone, I am new to this forum and to be honest, I have never scuba dived... However, I would like to use a scuba tank as an air compressor. I just came from the local scuba shop where they told me that it is quite simple to do (they use scuba tanks as air compressors themselves): just...

I have a surplus 3.5 cfm stewart warner compressor paired with a new honda motor. It suddenly lost compression Saturday. I use it for paintballing. I have no separator or filter except for the stock one (gravity with bleeder). I filled 2 HPA paintball tanks (48 ci and 62 ci) and on the 3rd...

I have two questions about tanks: 1) Someone told me, it is not good to store cylinders fully pressurized for prolonged periods, as afterwards they may fail to pass the hydrostatic tests. Is that true? How serious? What would be then an acceptable pressure? 2) Why was I taught in the courses...

Hello, I have been worried a lot about my ear equalization. The last time I went diving in the pool, my ear drum was on the brink of popping. So, yesterday I trained again. I remembered what some people here told me about reverse block, going slowly at my own rate, and it worked! My ears are...

Highland SPGs with attached bolt snap. I have two of these, $75 shipped for each. If you want both, I can do $140 for the pair, shipped. These are brand new, never wet, and never mounted on a hose. Each pressure gauge includes the airspool. The face of the gauge is 2". These prices are for...