ROOR diffuser problem

Hey guys, i don't think i've posted before but i've been readin these forums for years.

My nice 6 month old roor has a problem. The diffuser is stuck and it won't come out so i can clean it. Has anyone else had this problem? I ran it in warm water and used 420 but it still won't budge, this is bummin' me out because i like to keep a clean pipe and i can't. I'm afraid to get in a serious tug of war match with it because it cost 300+.

Thanks for the help.
Peace

soak the joints in hot ass water keep running water through slider to heat it up and try to loosen it gently if that dont work try alcohol and let it soak around the joint so it can try to pene trate just try to lightly twist it after it has had a buncha hot water ran through to soften up resin

submerge it in a bath of like some sort of cleaner and twist it while its still in the bath....