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Thinking about making your own
hookah for diving? Here's some ideas to get you started!

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Here's the
best
site I found with an overall breakdown of equipment.
General requirements for the compressor:
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max psi 100-150, |
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CFM >1.5 at 45psi (CFM of 4-5 is ideal for 2
people). |
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The higher the CFM you get more air flow for adding
additional divers. Usually you need something around 3/4 to 3 Hp to
get the CFM high for deeper dives (to get 2 people to 70ft, you need
about 6 CFM at 50 psi). But if you're just cleaning the bottom, then
1.5 at 45psi, is fine. 45 psi is about 30 feet deep. |
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Horse power is usually around 1 to 3 for a
multi-person 30+ foot deep unit. |
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(Example compressor specs
here. |
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However, for shallow water hookah action, you could
probably use a 1/2, 3/4 hp unit with a good sized reserve tank and
get one person to 25-30 feet pretty comfortably. |
Filters:
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Need an air/water separator |
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40 micron air filter |
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These filters remove any condensation and particles
from the compressor.
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Reserve tank: The best tank I saw was made out of
material like hypalon and could be rolled up. When it was in use, you
can run a hose from the compressor to the tank, then from the tank to
the diver. This allows the tank to sit on the water (helping to cool off
the compressed air). And it rolled up nicely. It's called the
Sea Breathe. With the flexible tank, the overall operating psi has
to be limited which reduces the depth you can reach. The Seabreathe
units only go to about 20feet or so. I've used one, and when you dive
deeper, you have to either breathe really slowly or hold your breath
below about 35 feet.
Regulator: just buy some used ones, and adjust them to a lower
pressure (30psi instead of 100psi). You can adjust it yourself, but I
don't know how.
Hose: You can buy the same hose they use for pneumatic tools. I
found some in Mexico for only $22 for 25 feet. Scuba hose works too, if
you can find some cheep on ebay or something.
Fittings: use the bronze NPT type fittings everywhere and they'll
be compatible with the scuba regulator.
Belt: Hoses float, so the belt needs to keep the hose out of the
way and keep it from floating off without you. Something with some nylon
webbing and some lead fishing weights should do it.
Floats: In may third world places, you can still buy inner-tubes.
You just have to keep the waves and water away from the motor and
compressor....
General Info:
You've got to keep the exhaust away from the air intake on a gas powered
model. Some units add a pipe or hose to pull clean air from a few feet
away from the exhaust.
For more
info click here and see hookah section and links.
Another example
compressor (according to them 2hp is a minimum, but it's probably
overkill for 1 diver < 30 feet.)
I've looked around some here in Mexico for options. Some of the
compressors I've seen that come close are usually for pneumatic tools
and paint sprayers. But the selection is so small that I can't find one
with enough CFM. But they are all oil-less and some have a high psi.
Remember the higher the psi rating, usually the lower the CFM rating.
You only need to operate it at about 45 psi for 30ft., so if it can get
to 80psi or so, then it probably will work ok.
I suspect a good system will probably run you about $350 to $500. I was
hoping to get something for about $100, so I've decided I'll just
practice holding my breath instead. If we had lots of room on the
boat for it, I'd probably try making one. A really cheap hookah
for just going <10 feet could be built using a 12V truck tire inflator
and a reserve tank of some kind. You could probably put that
system together for $100.
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