<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Do most submarine manipulator arms have a pump for each cylinder controlled electronically from the inside of the sub or do they have one pump that is continuously running and hoses go in the sub and controlled with valves? Or perhaps another way? </div>
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<div>My excavators in my company have one pump that is engine driven and it runs continuously an the cylinders are actuated by valves. Seems impractical to me to have a battery driven pump that runs continuously. </div>
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<div>Thanks,</div>
<div>Scott Waters</div></span></body></html>