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Basic info about SSA Surface Supply Diving (DIY)

Wojtulson

Member
Mar 21, 2019
9
4
18
39
Poland
Good morning Sirs!

I'm looking for a experienced divers who could help me with my project.

I do the underwater maintaining of the wooden rafts. To work more efficiently I would like to use a surface supply diving device, some kind of Hookah. My plan is to create this device by myself (DIY).

Typical Hookah DIY project is just an air pomp connected with a 2nd stage regulator.

My initial idea is to improve it and connect a regulator via 11kg gas bottle charged with a compressor. So the pomp/compressor doesn't work continuously but charger the bottle when needed.

For this moment I'm looking for the information how much pressure (how many bars/atmospheres) should I provide from the bottle to comfortably breath in two scenarios:

1. I will not go deeper than 3 meters / 10 feet
2. I would like to work deeper, up to 5m / 15 feet

Thank you for the help!
Best wishes,
- Wojtulson

PS: Attaching the initial device schema ssa_device_diy.png
ssa_device_diy.png
 
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