Hey Ron...
Nice to see a fellow "New Englander" up on the forum.
As to your question... each system has its' own aplication, advantages/disadvantages. I use both systems, but I dive for a living. I like the surface supplied hose gear (Hooka) for less weight, more time, comfort underwater, but you are limited in your depth, overall movement, entanglements, hose getting pinched, etc.
I use steel, high pressure 120's for scuba. I can use a set of doubles in 20 feet of fresh water wearing no weight belt and be underwater for nearly three hours!!! Once you get underwater with the tanks, you don't feel the weight, so this is more a question of personal prefference. I'm with Wreckdiver1715 on the "freedom" issue with tanks. Sometimes, for reasons unknown, some force "pulls" you in a certain direction in our underwater quests... being on a hose can limit you and the direction your search may take you.
The "Hooka" gear will pay for itself over a long period of time depending upon how much diving you do. The tanks will allow you more freedom and reduce entanglements. If you dive all day with hose gear at 40 to 45 feet, then you're gonna get bent, so the same rules as far as bottom time/no decompression limits still apply. Using scuba kind of forces you to come up and take a look at your bottom time. So you must plan accordingly.
Shallow water, pulling the hooka behind you, it is great for allong the beach. I use surface supplied/hose gear when I'm working, but often times I switch to scuba depending on the job.
OK... now that I have confused you more... airfills and shop availability is a concern, so floating down the river with a gas engine running overhead may be better, but watch out for the entanglements. If diving at the beach, I would think there may be a risk of a wave tipping the engine/float "hooka" system upside down? I've had a compressor "walk" (vibrate) of the end of a dock many years ago and let me tell you... it was no fun having nothing but water in your breathing hose!!! Even though I was only in ten feet of water, it was still a big suprise!!!
Anyway... I go through Raymond every once in a while on my way up to Manchester. Maybe I'll give you a call the next time I come through...
Have a good one and dive safe,
Wayne
