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Old 07-29-2017, 11:25 AM   #40
Chrisjs
Guru
 
Join Date: Oct 2007
Posts: 1,121
While I agree there are several non-tank versions for sale, it would be interesting to hear from somebody with real underwater experience of these straight-through type units.
The more expensive versions do include tanks. The tank acts as a buffer and enables the diver to intermittently consume more air than the pump puts out as necessary while working under water.
I assembled my own hookah including a pancake compressor with built-in 3 gallon reservoir, but this was to a design specified by an experienced professional diver, and I am PADI qualified.
What I do know for a fact is that working on your prop. etc becomes an easy maintenance task once you can breath relatively normally under water.
In our marina, it was necessary to clean the underwater gear every few weeks during the Summer, though I tried to always do it while in a pleasant anchorage rather than the marina. Also, even in the Bahamas it was worthwhile to have the hookah for cleaning and changing zincs.
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