yeh thats what i do,, i get it in bricks so at the start i use a big bucket of ph's water to break them down and job done,,as far as i was aware thats all i need to ph all thru with the coco bin a bufer an allIn future your better off soaking the coco in ph'd water first mate for a day or 2, dude I know does that with his coco.
it hink possibley ive found the PE amongst them too