The flow on the 1/2 is 15LPM and thats no problem.
but i dont realy get that with back preasure. (im not so brigt)
But i have a big problem the school wer i am going to make the block ar going to be clost to late agust
so i dont have any CNC to work with (i have A+ (MVG in 5 CNC curses
) yust have to brag) . so i have to make a chep test block with a rigd drill at my dads jobb :/
i gess i will have to weld the Hose Barbs to the block.
and i im going to macke a relay thas make the pump to do a slow start so it dosent pump 60L att the start, like after 30sec it have maximum power