Thanks for the response's, when I say it blew out I mean the seal blew out or the pressure blew the filter off the inside of the canister. It did not rupture the can. I have cleaned everything I can think of and only use Kubota parts.
I am having the same problem with my BX 2230. If you figure it out please let me know. I am trying to avoid taking it in $$$$. Been working on it since June. Had it goin for 2 weeks until it blew the forth filter.