Washer pump seems ok with the speed controller, so low flow rate, had it on test for a few hours and no problems. It was still cold, but that was with water, next test is with oil.
Im going to put an intermediate tank with a number of baffles to act as a settlement and swarf trap which then drains into the washer bottle.
time will tell, but it's a cheap option at the moment and I already had all the elements......

thangs guys