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Hi Frank,
I would use a pump set-up for my own sub, but you really could do it either
way. I'm don't understand the advantage of using the linaer actuator. You still
need lines passing thru the hull unless it's mounted outside. If you mount
either one outside you will need to protect the electrical components from
water. If you use the linaer actuater you will need to start and stop it every
time you use a manipulator function or will stall the motor when you shut off
that particular function. With an open center valve the hydraulic fluid will
just continue to flow at minimal pressure when hydraulic circuits are not being
used.
Best Regards,
Jim K
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