I'm a volunteer firefighter. I live in a rural area where I have to fly out my empties. I think I'll look in to this. I've just had our ten bottles replaced.

I am a Bauer and Nuvair factory technician, and the only thing I can say is that, wow, you've done your research, and you nailed all the key points. Maybe find a more effective way to do aftercooling, like using a coil of stainless tubing. And the final stage separator should be installed right after the final stage but after all the filters since moisture reduces the effectiveness of all the filters. The PMV should be something individual instead of built-in and installed after the final filter. Maybe consider installing remote air intake, dew point monitor and Co monitor as well as performing air testing to be compliant with Grade D breathing air or CSA 275.2. Also, consider replacing all the filters with a Bauer triplex.

You might consider an air dryer like what we use on commercial semi trucks they are large air dryer canisters

I have debated this before! Please give updates for n how the air works out, any tank issues, build sheet and costs, subscribing for this kinda info for sure!

This was a fun project and it really works! Air quality is great. Many more tests to come.

After a year how has it held up? Have you filled any 80s with it yet? How much did the whole rig end up costing? Thank you.

A while back i bought a similar compressor and air filter and everything, but my diving school prohibited me from using it as it's impossible to guarantee that the air is healthy clean. Official filling stations are sampled and checked by a lab to prove that the air is good, and that the machinery is almost guaranteed to keep working in that clean way. If you want to poison yourself it's your own choice, but your buddy is also depending on the air quality in your tank. Which makes it rude to fill your tank with this.

Awesome video thanks for sharing . I don't have a dive shop anywhere close to me so I would like to build a rig similar to yours .

You can also consider an auto drain system for both the final stage and the inter-stage if you want further improvement.

thank you for the tips, verry usefull.

I just used a Husky oil less compressor with a Horrible Freight spray paint filter and a $50 regulator and 2x 25 ft HF hoses I was down only 5.5 feet for 45 minutes in my pond vacuuming sludge off the bottom, and I had no problems what so ever. It was really cool in fact.

Excellent build, and explanation, Sir! Would you be as so kind to provide links, or if anybody else could on the Whole Filtration system parts sources? I was lucky to find an Electric Poseidon "UNI" model 3.5 CFM Compressor. Several decades old but with maybe 10 max 80Cu tank fills in its whole life. The issue is I have hit brick walls sourcing any of the Old Filter designs as they are now "Obsolete" I searched for even NOS filters, with no luck, as well. So, like you I only wish for Clean Air going into these lungs of mine, and some directions as to what you sourced would be pure gold. I was quoted over $1,100.00 for a custom build from Bauer, who made the Compressor head section for Poseidon to begin with. Poseidon as a Company is no longer, and Bauer sort of bought them out. The USA Factory reps do not wish to support us small fries and cater to the Huge Compressor market mostly! If anyone else has any suggestions as well, I'd appreciate your input, as well! Thanks for a great understandable build, and use of your compressor! It should last you, because of your enhancements galore! Great JOB!!!

At the price point man ... But that looks fun!

Will you be getting a 2L scuba tank now that they are out. Interested to find out how quick your set up can fill it.

I'm wondering if we need change oil regularly?

Whats wrong with the air quality after spending so much on filters?

Do you have a link to the inline bleed valve?

Do not do this. Not enough oxygen in the air for this.