Water pumps in ocean = bad. What you want is the water over a small 1 deep pool, like 5x5, an infinite spring... you are not meant to be pumping out oceans if you still want the ocean there.
And 10 industrial engine can power 36 quarries and 10 pumps... do you need that many quarries?
Ok I will do that 5x5 thing, And the short answer with the quarries is yes I need that many if not more