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Dear Divers: I have a question which I hope someone on the net can answer. We currently use bailout bottles connected to a DSI manifold block in one of our redundant equipment configurations. Currently, all pony first stages must be equipped with an over pressure relief valve from DSi at a cost of $28 dollars per item. This is basicaly a spring loaded seat which plugs into a lp port and allows pressure to be vented in case the first stage pressure "creeps" above 200 psi, thus eliminating the possibility of rupturing the low pressure hose which goes from the pony first stage to the manifold block. I know we could add a second stage to the pony reg, but this is a cumbersome option. Does anyone have a better solution than forking out the $28.00 per set, or is this the best option? How about the Sherwood dry bleed system. If a sherwood regulator creeps, will this pressure be vented at an increased rate through the dry bleed valve, or is this valve too small to ever be used as a safety measure (I suspect it is, but would appreciate confirmation). Thanks for your thoughts -Jim R. James Sibthorp, Assistant Diving Safety Officer East Carolina University Diving Safety Office Central Receiving Warehouse Greenville, NC 27858 (919) 328-4041 Bitnet: HPSIBTHR@EC* Internet: HPSIBTHR@EC*.CI*.EC*.ED*
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