Hi Folks,
Seems the eternal problem, the loose tank strap.
Much good info here already.
Here's my take. It actually requires very little tension to retain the tank, but the tension must be greater than zero. Tanks get smaller when the pressure drops, and straps due get longer when wet as nylon absorbs water.
The real problem is that there is no "spring" in the system. The typical tank strap webbing is good for many 1000's of lbs, a human with a 3 inch long buckle is not going to stretch the webbing much.
What our "Cam Strap Tension Pad" does is provide the missing spring.
http://www.deepseasupply.com/page11.html
Our pad works by creating a "point load" . Previous attempts at strap covers or pads have been long, thin, often hard plastic or rubber pads that offered no thickness to be "squeezed".
Our pads do three things: Maintain tension on the strap, limit the total load on the buckle preventing breakage and greatly reduces the closing force required.
I know it's hard to believe but they do work great.
I'm willing to mail out a pair, free of charge, to the first 10 people to PM me with a name and ship to address.