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I think we have covered this before... Here is a link to an old thread. Most likely you have some Nitrox analyzer calibration issues. Please wait If you do have a leak causing this dilution, it would have to be in the section between the Nitrox Stik and your air compressor intake, the rest of...

I find the best way to tap into your compressor output is with a Street Tee, isolation valve, and yoke block. Then you can hang an old scuba regulator at the output of your compressor, and use an adapter that plugs into the BC hose. Check out these links. Scuba Regulator for Oxygen Analyzer...

Here's a short list of some of the hazardous materials we commonly keep around the house... Alcohol, rubbing or otherwise (I prefer the potable variety) Cleaning supplies, bleach, amonia, etc. Batteries, of all sizes, including rechargable power tool batteries. Poisons for pests, Raid, etc...

Should work now, thanks for letting me know.

If you search my post history, you may find that I provide sound advice to the Do It Yourselfer. Just your friendly neighborhood Rocket Scientist, trying to help out... http://www.scubaboard.com/forums/search.php?do=finduser&userid=77776&contenttype=vBForum_Post&showposts=1

Best of luck. The throttling solenoid valve alone costs waaaay more than $200. The controller is comprised of scientific and industrial quality components, some of which are custom built to my specifications. But I'm flattered that you want to rip of my engineering... Keep in mind, that...

Information about the Nitrox Controller can be found here: Rubber Duckie Designs Nitrox Controller, an Automated Control System for Blending Enriched Air Nitrox (EANx) for SCUBA The controller frees up a bunch of time... sort of like the RONCO Show Time Rotisserie Barbeque: you just "set it...

Nope. That is made from flat stock PVC, shoved into a pice of clear tube. Works, but causes relatively high differential pressure. Nitrox Stik elements are helical. Stacked to cause rotation in opposite directions. More like this: Helicoid - Wikipedia, the free encyclopedia.

The Koflo mixers on this website is not what is inside the Envirodive Nitrox Stik. The Nitrox Stik uses a more expensive helical element that doesn't reduce the cross sectional area or cause as much pressure drop. The elements in the Nitrox Stik cause the flow to rotate in one direction, then...

I suppose you could use a Normally closed pneumatic one, SMC might carry something. You'd have to get something that works in the proper pressure range, something that opened at around 50 psi, otherwise the valve might clycle and let oxygen leak by, I think there is some residual pressure in...

If you are using this for surface supplied, and you have a power source on board (12 volt DC, 120 volt AC), you could use a barkesdale or similar pressure switch monitoring the pressure between the ouput of the compressor and the unloader valve (load genie). When the valve shifts and idles the...

1 CFM is equal to 28.3 LPM. So 5 CFM is 141.5 LPM 32% Nitrox requires a flowrate of pure oxygen equal to 14% of your compressors flowrate. This assumes that the air your compressor takes in is dry, with no humidity. As humidity goes up, you will require a lower flowrate of oxygen. 141.5 LPM...

Thought I'd throw in my two cents. For membrane systems that use high pressure feed air, the heater is a must. Otherwise the very cold air going into the membrane from the adiabatic expansion from high pressure to low pressure will freeze/embrittle the little tubes in the membrane leading to...

I have repaired two of these units. If you have specific questions, I can probably answer them. Some of the aspects of the unit by Machine Design are similar to the Nitrox Controller that I build. It turns out there are only so many ways to solve a specific problem, and we independantly came...

see spreadsheet. Has both table and calculator. http://www.rubberduckiedesigns.com/Documents/Nitrox%20Controller%20Downloads/Humidity%20Spreadsheet.xls

We have touched on this before. See these threads. http://www.scubaboard.com/forums/compressors-boosters-nitrox-trimix-blending-systems/317866-bauer-air-kool.html http://www.scubaboard.com/forums/compressors-boosters-nitrox-trimix-blending-systems/332780-after-cooler-bauer-k14.html

One of the dive shops I work with frequently here in Hawaii has a Cascade system with about 50 storage bottles grouped into high, medium, and low banks. Its a pyramid system with about 25 of the bottles in the low bank, 15 or so bottles in the medium bank, and 10 bottles in the high bank. When...

This is very feasible. But you have to be able to make the oxygen at whatever rate you need to feed your air compressor. Essentially this is equivelant to a miniature membrane system. So if you have a very small HP air compressor this idea is practicable. There are a couple companies that...

Ever considered a Rix? http://www.rixindustries.com/pdf/bair.pdf not inexpensive but certainly compact.

I made a drain bucket for a Dive shop a while back that worked liked a charm. The operating principle is that liquid water will not make tight turns and essentially gets thrown out of the stream of air. I got ahold of a 15 gallon polyethelene bucket (appropriate for the 17 cfm air compressor...