I've been building my own hookahs for 18 years. If you have any questions, feel free.
Got lots of questions, so I hope I can join the conversation. But first a bit of background:
My old friend, noted in an earlier post, used to build hookahs for use in mining holes 3-30 foot deep.
He used a small Briggs and Stratton motor, which, If I remember correctly, was a four stroke, 4hp model.
He would rig a pully on it and run it to a small, blue compressor (have no idea what brand) to which he rigged about 5' of pvc pipe with a filter on top as an air intake. The whole rig sat on an aluminum frame, kinda like a backpack frame, which was tied to a rubber tire tube.
On the diver's side of the compressor was hose (seemed like nothing more than garden hose, but I really don't remember) to which he attached an old propane tank with nipples welded on each end. Not exactly "military spec" I am sure.
On the diver's side of the tank was more hose, ending in a normal dive regulator, probably an old Aqualung Aquarius, which he had adapted by swapping out the regulation spring with a lighter, less powerful spring.
I used the rig a number of times in depths to about 20 feet, with no problems, and am thinking about building one here, in SE Asia, because I can't always get air and need to clean my own hull on my live-aboard sailboat. By the way, I used to clean bottoms with an onshore, electric hookah in LA harbor, 1976 or so.
That said, my questions are as follows:
1. Why couldn't I do something similar using whatever, local, probably Chinese made, motor I can find? Guys around here use "pump" motors, and they seem to be pretty reliable. Is the extra smoke expected from a 2 stroke a good reason to stay with a 4 stroke engine, and are the engines used on small, "home use" hookah rigs 4 or 2 stroke?
2. Have read and understood the hose debate, but good hose is not available here. For a once a month job on my own boat, wouldn't what they call "chem hose" work adequately, if perhaps less safely? I am referring to the kind of clear, green, reinforced hose often used to supply gas to a motorcycle carburetor.
3. If I use a local compressor, what kind of specs should it have, in order to send air no more than 30 feet down to a single diver? In fact, most use will be in no more than 3 feet of water, with the rig in the cockpit of my boat, but, I would like to be able to use the rig to dive the anchor, as well, if necessary.
4. Does anybody know of any compressor like the blue one I described and why such a piece of equipment may or may not be adequate or safe for the type of use I describe?
5. As noted in other threads, I have a '70s vintage Aqualung Aquarius regulator. If I take it apart and replace the spring for use in a home made hookah rig, what kind/size of spring should I use?
6. I do not want to use an old propane tank as a "holding tank" for my air, so what kind of tank would suffice?
Well, that's plenty for now.
Any and all comments would be greatly appreciated,
G2L