the separator is a piece of 8mm threaded rod using 1.25" washer with 5/16" holes in the centre and 3x1/4" holes drilled eqidistant in each washer also I grooved the edges in 3 places, these are seperated with half nuts and full nuts at each end and the threads peened over, they are set up at 60 deg to each other so there is no line of sight along them. The housing is in 35mm copper if you can get "Yorkshire" fittings so much the better, you need a 35x15mm reducer "YP6" a 35x35x15 reduced T "YP25" or "YP37R" an end cap also in 35mm "YP61" a 15 mm street elbow (male one female t'other ) some 35mm pipe try a heating engineer if you don't need 3 metres!! a 15mm 45deg elbow and some 15mm pipe. At the top i used some 1" bore clear pvc to keep an eye on what was returning to the inlet and good quality garden hose for the rest(blue stuff). If you can't get the yorkshire stuff it doesn't matter but will probably have to go 35-22-22-15mm on the reducer like mine and it looks a bit messy, at the 15mm end of the out let I skimmed the inside of the fitting so i could push the pipe in just beond the shoulder to stop oil crawling up the sides. The bottom baffle in the stack is adjusted to sit blow the 15mm side inlet to minimise oil slopping around in the bottom res' which is approx 100mls. hope this is OK, --elephant hose is large "trunk" from ccv to the ground a-la BMC circa 1950's
