Ranmar850, you are correct .
I am an overthinker. Sometimes its a strength and other times its a weakness.
I like to pool noodle idea, Might give that a crack as I have a few floating around here somewhere.
I am cautious because when I bought the boat the system dumped a lot of oil from the power steering ram on the journey. There was excessive air in the system before the journey started and that probably contributed but I am uncertain if the leak was due to an underlying issue or the 800 km journey.