So I'm reading the Owners manual and in it it says the Water pump when on keeps the pressure at 55psi. Then right after that it says regulate your water intake and that 45 is a good number.
So if pump puts it at 55 why isn't 55 a good number from the shore?
A Rolling Rock, ( do I sense a beer drinker here?)
Could the answer be……because they said so😂. Just kidding!
Seriously, my take is that you would be fine at either setting. Not sure why the information conflicts itself.
We have our regulator set to 40-45 psi and find that provides enough water psi for us.
PEX is rated well above either of those values.
For example one source indicates 100psi at 180F.
Personally, I would not consider exceeding the rating of the pump, the plumbing is only as strong as it’s weakest link and sometimes they might use non PEX hoses to make certain connections(like at the pump or maybe spray ports) it is possible that they might not be rated the same.
Wish I had a more definitive answer for you on the conflicting specifications .