[PSUBS-MAILIST] High Pressure Pump

[Alan via Personal_Submersibles]

Hi,
I've been searching for a high pressure marine water pump over 500psi
with view of using it on my trimming system & compensating system, 
but haven't had much luck.
I want to be able to pump water out at 500 ft to adjust the buoyancy. 
The 500psi is for a bit of redundancy. An additional thought was that I 
could have a valve on it to operate a drop weight mechanism.
Anybody know of any such animal in existence thanks.
Alan


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